On all my guided boat dives, the dive master/guide has always done a 3 minute SS at 15 feet. Always.
I just bought the Perdix AI yesterday and found that it only allows SS settings at 10ft or 20ft. I'm curious about the rationale for this and whether one is "more right" than the other (computer...
Although my OW training insists on slow ascents, I rarely ascend as slow as recommended from a "safety stop". Should it really take 15 seconds to get back to the surface from 15 ft.?
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