Divectionist
Contributor
A ScubaBoard Staff Message...
So whilst the GF hi percentage obviously decreases to have the diver surface with a greater margin of safety, why does the GF lo also step down in 5% increments for each 10% decrease in the hi value?
Perdix AI presets in OC Rec:
45/95 (Low conservatism)
40/85 (Medium conservatism)
35/75 (High conservatism)
Does starting/clearing your deco deeper on a high conservatism ascent provide for a marginally safer profile? Is there a sweet spot for NDL diving/accidental(=minimal) deco diving where slow tissue saturation is not as pronounced as during proper extended deco diving? Does this differ from intentional deco diving?
I would appreciate any input re the above for the benefit of those intending to customise their GFs. I am personally using a custom 50/75 setting in OC Rec on the Perdix because I still take the GF lo value seriously for NDL diving in case of accidental deco and looking at the general evidence, I would rather have a shallower stop than a deeper stop. But there is still a correlation that I would like to be clear on to feel like I make the best possible choice. I am not trying to edge towards a more aggressive setting as I am a conservative diver and choose a large safety margin despite being under 30 years old and physically fit. It is really more about making a decision for a 'set it and forget it' scenario that can be a constant principle going forward into some mild deco tech diving experience, until new studies/evidence comes along.