I have an example where VPM-B +0 gives an earlier and longer deco obligation than VPM-B +1 and +2 for the same imported dive. I found another dive where +0 and +1 were almost identical.
I was comparing VPM-B to Cochran's algorithm on a dive were the Cochran gave me a minor deco obligation. To do that I'd change to the VPM-B algo in the Plan dive function and it would show the obligation for a dive in the profile display for imported dives. I tried pulling out the XML for just the two dives in question but I was unable to duplicate the problem. When I included previous dives from the trip it was reproducible. It seems to be an issue when repetitive dives are included. The SIT was 18 hours. I can provide an XML file to whomever is interested in investigating. The algo implementation is way beyond me. -- John Van Ostrand At large on sabbatical
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