What is an average tek diving month for a techdiver list participant? How many dives per month? What range of depths? What range of bottom times? What criteria is used to select the bottom mix? Personally, I do 8 to 12 technical level exposures per month. The depth range is from 170' to about 400'. Bottom times vary from 15 to 45 minutes. Down to 200' and 45 minutes bottom time, I use air. For bounce dives to about 280' and light exposures to 250', I also use air or a VERY light Heliair. NOTE: I DO NOT RECOMMEND ANYONE USE AIR DEEPER THAN 200fsw. I'm just too stupid to take my own advice! For any dives "hairier" than those described above, I'll use a heavy-duty Heliair (mucho He). Until helium gets cheaper(listen-up fusion scientist!) or I get my Mk 5, I'll continue to use air as much as safely possible.
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