Suggestions on cold water regs?

[MNLakeDiver]

good fills from a good shop 

when shoping for a reg. I would start with what brands are serviced by your local dive shop? I ask this because if you have a failure your local dive shop may have the parts in stock and can fix it quickly.
I have watched Chuck from GUDC repair regs in the field with parts he carries with him saving a weekend of diving for the owner of the regs.

I'm not trying to start a discusion of where to buy your regs just having you think about what if the need service during the season.

that said I dive a Sherwood and the only problems I have had was buddies telling me I had a leak (sherwoods do that on purpose)
I plan to buy an Apex set this summer