Jens Bölte
Contributor
Clearly, that probably also explains Aqua Lung's GF high of 90 and Seac's GF high of 85
Well, I suspect that in a NDL-dive with a safety-stop of 3 min at 5 m is probably far away from a GF 90 unless you dive with a NDL of 1 min for most of the dive.
Best wishes Jens