Stuart, et all, as I understand from Bruce, the HUD is totally independent and is programmed to require hook up to all three cells. any thoughts on how to fit a fourth cell into the Copis head for the Shearwater GF. I could leave the HUD and stock handset access to the three cells but I just can't figure out how to deal with the 4th cell issue. I would go back to the idea of putting a 4th cell in the counter lung but I'd really like to keep it all in the head. You've played around with all this quite a bit, do you have any suggestions? Perhaps you're not so worked up about isolation, if not, why not?
gill
Quote: (Originally Posted by
schford)

I think you are spot on with that statement and is why the Shearwater HUD is so strong - you KNOW what all 3 cells are reading....