O2 During Safety Stop?

[john j]

Good summary.

On the triox issue...I dive almost exclusively with trimix in my CCR, even on the shallow dives (just easier to leave the trimix on than switching to a different tank) so I am definately a supporter of trimix, a BIG supporter. Just not for 130ft or less dives, that are single tank, no-decompression and non-overhead environment (a.k.a recreational dives). There is just no need for it, it adds risk in my opinion, and the diver just isn't down long enough to truely benefit. I'm not saying people shouldn't be allowed to do it. You can spend your money however you want. If you want to waste the $20+ per fill, that's your business-go right ahead. I just think it's silly. My funds are limited, so I would rather spend my money where it will count more, so I'd go for the advanced nitrox/deco class or extended range before I'd go with recreational trimix. Or I'd go on another dive trip or something. I just don't see what you really get out of recreational trimix. Education and skill practice I suppose. Now I've changed the subject..sorry. Anyway, I thought the previous summary was good-and the idea about keeping breathing control was a great one. I suppose that the free divers really are good at breath control while SCUBA diving. Free diving sounds like a great skill set to compliment SCUBA diving skills.