I have 2 sets of the Sea Elite regs and I use them on my doubles. I've had them to 160ft, in water down 45 degrees, and have used them for my cave training. I've never had an issue. This reg is the exact same reg as salvo's new SRX/SR3. Balanced, sealed first stage, air-balanced second stage w/ adjustable cracking pressure and venturi-assist. The hose routing is pretty much identical to Apeks FST's. So you get a bit of a kink in the inflator hose of the right post and you will prob need a 24" hose on your backup (assuming hogarthian routing). But they route cleanly. I have a local diver's supply that has been great to me so I don't worry about parts availability or anything like that. That may be the deciding factor for you. These regs have been good to me and I wouldn't hesitate to recommend them. This is a great price.