Mares regs are ok for the most part I use a MR16 Voltrex as my "Quarry reg" most of the time as I use Apeks now for the other stuff...The major problem at least in the US is the horrible Mares service to your LDS and to you the end user as a result...I have yet to go into my MR 16 and it is six years old so it is quite dependable....hummm...maybe it is time to break it down did'nt realize it was that old..