As my diving on this wonderful unit progresses, more questions pop up outside of training. Training standard was to turn on the adv and leave it on. However, as I tighten up on things, am finding this increasingly wasteful. Due to only having 80 bar of dil for my last dive, I chose to turn off the adv on reaching the bottom and was able to leave it off for the remainder of the dive, apart from two manual quick squirts. For a 30m dive I "only" used 30 bar of dil in an hour. Do the majority turn off their adv, including for deeper dives beyond the 30 metre range? Interested in what strategies people may use. Where practical I intend to turn it off but am wondering about the pitfalls of that.