[IanDennis]

I would suggest the Scubapro MK2 or M25.

MK2 is reliable, easy to service, simple to 02 clean.

Personally I prefer MK25's - all my stage regs and backgas are then the same. They give very good hose routing and the turret works so that the lp hose can route upwards more naturally when deployed and to be stowed neatly downwards when not.

Whatever you pick make sure you put a good second stage on it. Regulators should be at least as good as those on backgas. The last thing you what is a poor reg on your deco bottle - especially when your going to spend as much time on it as your backgas. I use G250's for stages - superb breathe and same as my backgas regs

ian