On Mon, Jul 06, 2015 at 09:56:20AM -0300, Rodrigo Severo wrote: > On Mon, Jul 6, 2015 at 4:24 AM, Henrik Brautaset Aronsen > <[email protected]> wrote: > > > > On Sun, Jul 5, 2015 at 11:03 PM, Rick Walsh <[email protected]> wrote: > >> > >> Serious question: does anyone switch to 50% at 22m? > > > > > > For tank MOD markings around me usually round to the nearest 3 (meters). > > So 21 meters (not 22) for 50% and 6 meters (not 5) for o2. Etc. Also to > > the nearest 10ft. > > I dive metric, my stops are all multiple of 3 m and my tanks have the > real MODs, not rounded ones, as I understand MODs as maximum operation > depth, not mandatory other-gas depth ;) But obviously I understand > that having the MOD equal to some deco stop might seems less > confusing.
Thanks for the data points. > Truncating sounds more conservative but actually I bet that if your > dive plan gets unsafe because of half a meter on a deco stop or worst > half a foot you have other problems not rounding related so rounding > seems to me as the right thing to do. I completely agree. And as I said, the important reason to switch to rounding was to get Oxygen at 20ft - I think we can all agree that that's the common practice. I don't know of any tech diver who thinks that they can't switch to O₂ at 20ft. /D _______________________________________________ subsurface mailing list [email protected] http://lists.subsurface-divelog.org/cgi-bin/mailman/listinfo/subsurface
