Wow, that's alot to think about. Most of my diving is in Pensacola, and I use both MBT and Dive Pros, although I'm finding myself at MBT more often. I don't think they'll have any issue servicing, or getting service for any regs, and I'd be buying a parts kit or two just in case. As far as traveling, it'll be North America and the Caribbean - not planning any where else yet.