ams511
Contributor
most serious divers in the uk use apex.
din only.
2p
I remember from the Gasdiving UK page that Apeks, Beuchat, or Scubapro were acceptable choices. Beuchats like Poseidons can be a pain to service so I would avoid them. If you go with the Apeks I agree with the others that the XTX50 / DS4 is the way to go. If you go with Scubapro I would suggest the G250V and a MK-17. These regs are the sweet spots for price / performance and will never need to be replaced.