GPR with remote adjustment, have heard really good things about it. The precision is supposed to be awesome as well. I would say you cant go wrong with either.
the return to center sounds like a plus, have to read up a bit more on that,thanksI have an Elka System 5 dampner and couldn't be happier. Most are going to pick the one they have, what their buddy has or what they read and I'm no different. Any of the ones you've polled will work far superior to the stick style you'll never wanna go back. I do like the idea of the remote adjustability on the GPR.
I really like the ability to adjust the "return to center" dampning. The Elka will take the hit or bump and dampen out the impact, then return to center will NO resistance.
It's Hi/lo adjustibilty removes that heavy feel found on other dampers. I can't even tell there's a dampner, it's totally working behind the scenes to keep me riding straight and hard w/o wrist/arm fatique. Combined with my Flexx bars and Rox anti-vibe risers it's like floating along on my anti-gravity machine.