man so many questions as I had planned on doing this a while ago after the trek district came out (i ended up building a fixie with the same styling as the orange district). Anyways I ended up scrubbing my plans do to the fact that there were too many restrictions with the system.
I am interested about the new center drive system and wonder if it will prevent some of the stretching issues on the belt that I have heard about with the original system.
I like that you made the break in your frame at the chain stay as well since I have now heard from a fellow district rider who's frame has a break at the dropouts that there are tension issues that can develop in the belt if there is a break at the dropouts and from what I have heard Is the reason why the new districts have the break in the chain stays now to accept the belt.
how did you do your spacing on your hyper glide hub? did you center it or put it out on the edge?
the one reason I strayed away from the idea was due to the fact that there weren't a lot of options in gearing and belt size and hub selection. But I may try to do another project eventually. I have been seeing really crazy and creative designs for this system lately in single speed bikes. Maybe if I get the dough I will try something with the Phil wood belt drive designs.