<font color='#000080'>Darren,
Top of page 2 on this forum- Rebreathers : costs involved

Hope you're simulating deco-dives on your no-stops already-
bouyancy, reg-switches, SMB deployment etc.....well worth the effort in a low-risk situation.

I,m into my 3rd year on the YBOD but do very little deco on it- one of the big advantages of a CCR... do the deco-dives I used to but without the stops
e.g. : OC- 60mins@ 25m = 20mins stops
CCR 60mins@ 25m = 1 mins "
" 120mins@ 25m = 18 mins "

Just choose your option!
If you ever get into trimix the savings on gas are incredible.
ATB,
Terry