Robb, I've got close to 10hrs on it, and she still looks brand new.
No cracks/crazing/yellowing of the epoxy and no delamination, no signs of adverse reactions due to cylinder heat.
Right now it's on my hybrid, I decided to do both the 250 and the hybrid at the same time (otherwise the hybrid would just keep sitting there while I rode the 250 LOL).
It fits on both engines just fine, I'll get a few pics posted up for you.