[Miaplacidus (Brian)]

I bought a Cheshire, and a friend gave me a laser collimator that he machined himself. The thing I would say about lasers is that their accuracy seems to depend quite a lot on how tightly it is fitted to your focuser. There is enough variation in focusers that it is impossible to generalize about how well it will provide accurate collimation in any particular scope. I might use the laser to collimate the secondary, but really I rely on star images to collimate the primary.