Deep 6 will rebuild them for you. You can't argue with a factory rebuild. I bet they know what they're doing when it comes to making them right.
I've heard all sorts of alarmist rhetoric about serviceability of regs over the years. Yes, even about Atomics when they first came out. I don't think I was told I was going to die when I got my B2s, but it was close. Most of these fears are baseless but are encouraged by many shops to keep you buying what they sell. It's the tired "If I don't dive, teach or sell it, "it" must be crap!" mentality that the industry used to cling to in order to preserve their market share. I just don't buy into the fear mongering out there about new gear anymore. FWIW, the factory used to make HOG and Deep 6 regs have also made some parts for ScubaPro, Atomics and Zeagles over the years.