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[Description of stong current deco hang omitted...]

>However, I'm not sure that this is realistic either.  The reason is that if
>the current is that strong, it wasn't present at depth else it would have
>swept you away during your dive.  Therefor, you had to enter the current
>during ascent.  The boundary to the current was probably not knife sharp,
>so there was some period of time wherein the current was present but
>not as strong.  It was at that time that you should have taken some
>preventative action like getting the jon-line ready for use.

No.  If it was a wreck dive, then penetration can be assumed.  The current 
can change drastically while you are sheltered within the wreck.  As for
being swept away, again no.  I have done many dives on a wreck in strong
current.  The rule is to keep in contact with the wreck or a (strong) line.
While in the current, you pull yourself along, hand over hand.  Swimming
is pointless.

>     2) Are there other factors (such as rocks, etc.) that preclude the
>         boat from unanchoring and turning the decompression stop into
>         a drift dive?

You know, this possibility never even occured to me.  Hmmmm....
Filed for future reference...  Thanks.

craig

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