One tip I did learn that I can pass on in way of advice before you begin...

When you epoxy in the back half of the nock onto the battery post as the "stop"... stand it upright so the epoxy can't run down that slick steel battery casing and glue your top part to it, which will keep you from being able to turn it on and off.

Other than that one thing, everything has been flawless so far. I screwed one up that way, but the other one came out perfect. For all the rest, I'll just let them dry overnight standing straight up and there's no way that can happen again.