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Jason, Well, so far at least no one has flamed me :^) >redundancy" and I agree with that. Trouble is that in OW trimix >(the subject of this discussion) buddy diving just doesn't work. Are you saying it doesn't work there, or anywhere??? >I only *know* of one. How many do you need? They cost money, trap >line, have mass, can dump gas, create drag and have no useful Sorry - on this drag bit, I don't buy it. They're not offering up any more surface volume in the direction you're swimming than the tanks underneah them, and, in fact, they *may* give you a little more streamlining. I'm not prepared to argue strongly either way, but, it's CERTAINLY not as clut and dry on the drag as Jason says. >function. Surely you would be better off carrying a christmas tree >with you. They cost less, can't dump gas, have a *zero* failure rate >and have no useful function (just like a manifold), oh and create drag >and trap line too! But, you later admit to a lower task loading with a manifold. That *is* a useful function IMNSHO. >How closed is "mostly closed" and how much would it take to have >it bumped "fully closed" or less closed, ie more open? Shit - I don't know about you, but when I bump something, I mean, even *touch* it I notice. Bumping something hard enough to TURN a handle on an isolation manifold - come on now Jason, who do you think you're kidding on THAT one!!! >Yep I think you are right on this. I think he got over task loaded. >Which sort of backs me up on my feeling that manifolds have a lower >task loading normally, and a higher task loading in an emergency. IMO, lower task loading is great. That gives the manifolded diver a better chance at dealing with OTHER emergencies that might crop up. Now, if we could quantitatively assess those others in real probabilistic terms, we might be able to show how manifolds have a distinct advantage!!! The point is though, that the manifolded diver only had to deal with the SAME task loading as an independant diver and he screwed up... What else was involved here, because if a mix certified diver screws up on a SIMPLE thing like this, either we're not getting the whole story (Jason said in another postthat he had a *couple* of oher gear related problems to deal with!!!)... On a dive like this, if someone has a *couple* of problems and doesn't abort the dive, what does this say about him??? By the way, I'm just playing devils advocate, I see positives and negatives to both sides... But, without a manifold, how do you carry the twin tanks P:^) -Carl-
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