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>I don't mean to sound "cynical" - but what ELSE are decompression models if not "arbitrary". They are certainly not based on human physiology - but simply mathematical expressions that attempt to create results that (mostly) match real-life testing. > >Heck, if I developed a model based on the moon-phase - it would be valid if it happens to WORK! > >So, why not use the "Pyle Model of Deep Stops". He gave you the algorithm - it's easy enough to implement. It is based on real-life experience and it is a mathematical expression. It's a ALREADY a model - you just gotta use it. In my mind, the Pyle model is no more or less "valid" than anything that's based on Haldane's "intuition". > >Andy No cynicism at all. The issue is not whether or not we could force the program to insert the user requested Deep Stops, but in how we make the rest of hte model handle the extra events in the dive profile timeline. Abyss is unique in that it runs all of the tissue calculations in real time. Ever second of the dive a computation is made to determine a host of variables and all of them are caccounted for in the model. If I begin inserting points that are (artificial) to the model itself we can end up in a bad situation in a real hurry. What we need is for the internal model and the math we have created to call for the neccessity of these Deep Stops to begin with. And that is jsut what we are doing by working on this new Bubble model, and that was the real reason I asked whether people would be willing to wait the time it might take to do it right on a desktop PC. Sure, its real easy to cut a table and then go back and apply Rich's Deep Stop rule and end up with something that works. But I am trying to avoid that, and come up with a more elegant solution from the get go. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Christopher M. Parrett, President Abysmal Diving Inc. 6595 Odell Place, Suite G. Boulder CO, 80301 USA Makers of ABYSS, Advanced Dive Planning Software. Phone: (303) 530-7248 Fax: (303) 530-2808 File Transfer Site: ftp://ftp.abysmal.com/pub/abysmal World Wide Web Site: http://WWW.ABYSMAL.COM ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Rule #1 If We Don't Take Care Of The Customer.....Somebody Else Will. "Its not so much what we do, but how we do it that really matters."
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