I use Scubapro MK20 1st stages, coupled to Apex TX50 2nd stages, and I love them. I currently have 14 Mk20/TX50 combos, 4 DST/TX50 combos and 3 no name Argon regs. The MK20/TX50 combos are dived every week and go 4-5 years between 1st stage rebuilds, the DST/TX50 combos get wet 1-2 times a year, and need a 1st stage rebuild every 2-3 years or every time the inside of the DST gets wet.

Ask me which 1st stages I like better!

Buy Scubapro 1st stages, Apeks 2nd stages, and Uwatec Master Diver SPGs and you will have the best of all worlds.

Michael