| I use 1.6 for deco. However recent experience is making me reconsider this.
On very long stops over an extended week of deep diving I started to get an irritated throat. Sometimes i would cough and feel slightly light headed after the dive. I was using 80% for upto 45 mins deco all week. On the final dive I really felt my lungs suffering and experienced some sort of inability to breath properly for a few minutes. I put this down to too much rich mix, so I may alter my PPO2 for long dives.
Short deco hangs as I do here in the UK I will keep it at 1.6, perhaps only for long stuff i will shorten it.
Play with the PPO2 on your deco software and see what time difference it makes - not much for short deco obligations. But everyone is different in how they may react physically, so perhaps only you can tell.
Also remember its eaiser to maintain your buoyancy at 6m than at 3m, particulary if your tanks are fairly empty. So gas choice and PPO2 choice has many implications.
Getting out and feeling fit is far better than shaving a few mins off your deco.
Believe me, if you get out and have a pain in your joints you will feel very very stupid.  |