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Hi Everyone, People have been asking why don't table makers push their algorithims around to provide deeper stops. Well I have a theory, which the professionals are welcome to flame me for. I constructed a table making programme back in the days before I was able to lay my hands on the real thing. During the course of fiddling around with it I found that unless I set the short tissue compartments to be absurdly tolarent to overpressure, the "no-decompression-times" were very short. By very short, I mean a minute or two at 60 feet would trigger a stop of 1 minute at 10 feet. Now my gut feeling is that you would get bubbles if you have a liquid that is supersaturated by 2 or 3 bar, yet that is what is required in order that the NDL's match "popular" tables. So my theory is that the body can take a certain amount of bubbling after a shallow dive, but that if the same amount of bubbling were to occur at the begining of a long decompression, then those normally harmless bubbles would interfere with off-gassing to the extent that symptoms could occur. (I realise that bit isn't new) The practical up shot of this is that it may be nessasary to manually alter the way a dive is treated by the programme, in order that the deep stops are triggered and the NDL's are reasonable when diving shallow. What David Story refered to as "Custom Kludge" in the programme. (Wonderful phrase!)
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