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Ren de Haas wrote:
"Some people, Duane have nothing better to do than pick fights! I =
thought this list was to discuss certain topics, and for readers to give =
their views and opinions, obviously, your views and opinions seem to be =
directed more at the people writing than the topics themselves, thats =
fine!"
Ren, the deal is simple. This whole thread has been ridiculous, and I =
didn't think it was really worth the effort to battle such obvious =
silliness, but I stand corrected. If it's counter-arguments you want, =
hey, I've got them.
"but I suggest you at least keep an open mind to some of those opinions =
and listen or advise (if you you have any usefull information to give)
It appears to me you have no usefull information, nor are willing to =
discuss, any points of mine you may disagree with"
If by open minded you mean "gullible to dive-industry bullshit", then no =
I am not open minded. As for useful information, here's my nickel's =
worth:
A long while back, I dove quite a bit with a guy who had Mares Volo =
fins. I also had occasion to dive with some folks who swore by the =
twin jet thingies, so I have had some exposure to this crap. Hell, I =
didn't get turned on to original jets until less than a year ago. My =
take: The gimmick fins are all too floppy to be useful. As you said, =
they are completely useless for frog kicking, but they are also useless =
for sculling, shuffling, modified flutter, turning around while =
remaining horizontal by moving only your ankles, and just about any =
other propulsion or maneuvering technique other than an open water =
flutter kick. If the fin isn't moved through a relatively full range of =
motion, there is hardly any propulsion at all because the things are too =
soft to be responsive. =20
They are easy to over kick. If I want to go somewhere in a hurry, I =
need to be able to put some ass behind a pair of fins and get there now. =
Jets are stiff enough to do that, the other crap is not. If you've =
ever taken a good look at someone who tries to accellerate in any of =
these designs, it's pretty damn funny. There's a bit of a "roadrunner" =
effect where the legs kick furiously with little or no motion until the =
fin catches up. They're too soft to actually move a lot of water, and =
are easily over kicked until one builds up the forward momentum =
necessary to allow the fin to act against the now moving water column, =
you know--stream tube dynamics--as dynamic pressure increases, static =
pressure decreases. Static pressure is the enemy of the floppy fins, =
and is exactly what is required for accelleration, and for most =
propulsion techniques period, apart from the aforementioned flutter =
kick.
And now the coup de grace: They aren't that damn hot at the flutter =
kick, either. They are an accommodation to the weak. Anybody that can =
put some ass behind a set of proper fins and have the aerobic =
conditioning to not turn into a hoover, will smoke anyone in a set of =
gimmick fins. Maybe everyone who's tempted to try split fins should =
first try putting on a pair of running shoes, and maybe go to the gym =
once in a while.
Oh, and you had to know you were just asking for it with the aqua =
zepp comment. That was the straw that pushed me over the edge on =
deciding to post what I did originally. The idea of a grown man =
straddling a five foot long phallus is just too much for my sense of =
right and wrong to tolerate. ;-))
S/F,
Duane
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<DIV>
<DIV><FONT size=3D3><STRONG></STRONG></FONT><FONT
color=3D#000000 =
size=3D2>Ren de Haas=20
wrote:</FONT></DIV>
<DIV><FONT size=3D3><STRONG></STRONG></FONT> </DIV>
<DIV><FONT size=3D2>"Some people, Duane have nothing better to do =
than pick=20
fights! I thought this list was to discuss certain topics, and for =
readers to=20
give their views and opinions, obviously, your views and opinions seem =
to be=20
directed more at the people writing than the topics themselves, thats=20
fine!"</FONT></DIV>
<DIV><FONT size=3D3><STRONG></STRONG></FONT> </DIV>
<DIV><FONT size=3D3><STRONG></STRONG></FONT><FONT
color=3D#000000>Ren, =
the deal is=20
simple. This whole thread has been ridiculous, and I didn't think =
it was=20
really worth the effort to battle such obvious silliness, but I stand=20
corrected. If it's counter-arguments you want, hey, I've got=20
them.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=3D2>"but I suggest you at least keep an open mind =
to some of=20
those opinions and listen or advise (if you you have any usefull =
information to=20
give)</FONT></DIV>
<DIV><FONT size=3D2></FONT> </DIV>
<DIV><FONT size=3D2>It appears to me you have no usefull information, =
nor are=20
willing to discuss, any points of mine you may disagree=20
with"</FONT><STRONG></STRONG></DIV>
<DIV><STRONG></STRONG> </DIV>
<DIV>If by open minded you mean "gullible to dive-industry =
bullshit",=20
then no I am not open minded. As for useful information, here's my =
nickel's worth:</DIV>
<DIV><STRONG></STRONG> </DIV>
<DIV><FONT color=3D#000000>A long while back, I dove quite a bit =
with a guy=20
who had Mares Volo fins. I also had occasion to dive with =
some folks=20
who swore by the twin jet thingies, so I have had some exposure to this=20
crap. Hell, I didn't get turned on to original jets until =
less than=20
a year ago. My take: The gimmick fins are all too floppy to =
be=20
useful. As you said, they are completely useless for frog kicking, =
but=20
they are also useless for sculling, shuffling, modified flutter, turning =
around=20
while remaining horizontal by moving only your ankles, and just about =
any other=20
propulsion or maneuvering technique other than an open water flutter =
kick. =20
If the fin isn't moved through a relatively full range of motion, there =
is=20
hardly any propulsion at all because the things are too soft to be=20
responsive. </FONT></DIV>
<DIV><FONT color=3D#000000> They are easy to over =
kick. If=20
I want to go somewhere in a hurry, I need to be able to put some ass =
behind a=20
pair of fins and get there now. Jets are stiff enough to do that, =
the=20
other crap is not. If you've ever taken a good look at someone who =
tries=20
to accellerate in any of these designs, it's pretty damn funny. =
There's a=20
bit of a "roadrunner" effect where the legs kick furiously =
with little=20
or no motion until the fin catches up. They're too soft to =
actually move a=20
lot of water, and are easily over kicked until one builds up the forward =
momentum necessary to allow the fin to act against the now moving water =
column,=20
you know--stream tube dynamics--as dynamic pressure increases, static =
pressure=20
decreases. Static pressure is the enemy of the floppy fins, =
and is=20
exactly what is required for accelleration, and for most propulsion =
techniques=20
period, apart from the aforementioned flutter kick.</FONT></DIV>
<DIV><FONT color=3D#000000></FONT><FONT color=3D#000000 =
size=3D2> =20
<FONT size=3D3>And now the coup de grace: They aren't that damn =
hot at the=20
flutter kick, either. They are an accommodation to the weak. =
Anybody=20
that can put some ass behind a set of proper fins and have the aerobic=20
conditioning to not turn into a hoover, will smoke anyone in a set of =
gimmick=20
fins. Maybe everyone who's tempted to try split fins should first =
try=20
putting on a pair of running shoes, and maybe go to the gym once in a=20
while.</FONT></FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2><FONT =
size=3D3></FONT> <FONT=20
size=3D3>Oh, and you had to know you were just asking for it with the =
aqua zepp=20
comment. That was the straw that pushed me over the edge on =
deciding to=20
post what I did originally. The idea of a grown man straddling a =
five foot=20
long phallus is just too much for my sense of right and wrong to =
tolerate.=20
;-))</FONT></FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2><FONT =
size=3D3></FONT></FONT> </DIV>
<DIV>S/F,</DIV>
<DIV>Duane</DIV>
<DIV> </DIV>
<DIV><STRONG></STRONG> </DIV>
<DIV> </DIV></DIV></BODY></HTML>
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