Kevrumbo
Banned
- Messages
- 5,659
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- # of dives
- 1000 - 2499
The "leading experts" are speculating as applied to all mixed gas (Trimix) diving -based on anecdotal reports and extrapolation of data (i.e. "Deep Stops Skew") from the NEDU Study Paradigm- that Deep Stops while keeping Fast Tissue saturation & bubble formation in check, are also supersaturating/loading Slow Tissues significantly which can produce DCS symptoms after completion of a Dual Phase type decompression profile (i.e. RGBM, VPM, Ratio Deco).
The "leading experts" have not yet given a satisfactory explanation about the effects on Fast Tissue Supersaturation, if a Gradient Factor Buhlmann profile is arbitrarily set to moderate or even eliminate the Deepstops segment -but again anecdotally there appears to be no patently detrimental effects (i.g. No acute neuro type II DCS incidence).
Rossh, developer of current V-Planner and Multi-Deco commercial software/firmware platforms vehemently disputes the implied results of the NEDU study because its test paradigm unfairly skews the applications of the base VPM theory & model behind the software.
Again, abridged conclusion the NEDU Study:
The "leading experts" have not yet given a satisfactory explanation about the effects on Fast Tissue Supersaturation, if a Gradient Factor Buhlmann profile is arbitrarily set to moderate or even eliminate the Deepstops segment -but again anecdotally there appears to be no patently detrimental effects (i.g. No acute neuro type II DCS incidence).
Rossh, developer of current V-Planner and Multi-Deco commercial software/firmware platforms vehemently disputes the implied results of the NEDU study because its test paradigm unfairly skews the applications of the base VPM theory & model behind the software.
Again, abridged conclusion the NEDU Study:
.(Abstract, p.i). . .Divers wearing swimsuits and tshirts, breathing surface-supplied air via MK 20 UBA, and immersed in 86 °F water were compressed at 57 fsw/min to 170 fsw for a 30 minute bottom time during which they performed 130 watt cycle ergometer work. . . Results indicate that slower tissue gas washout or continued gas uptake offsets the benefits of reduced bubble growth at deep stops. . .
(Conclusion p.18) . . .The practical conclusion of this study is that controlling bubble formation in fast compartments with deep stops is unwarranted for air decompression dives