A few other things that I wanted to ask:

1. Does anyone have photos of Light Pattern paperwork? Perhaps an advert, or some kind of manual?
Or should I wait for John's book to arrive?

2. The "wheel" of the rear sight is quite loose on my gun; it feels a bit too easy to turn. It probably won't stay in the same position when pulling the gun out of a gunslip. Is this "normal" or are there tricks to remedy this? A drop op blue Loctite would help, but then turning becomes a bit too hard.