Between-step examination?

[mpierich]

I'd like to hear from anyone regarding their method of inspecting between grits. The better one can do this, the fewer times you have to drop back a step and do it over, and I'm sure we all love to do that, lol!.

I use cross-sanding and polishing (and a strong light), but inevitably miss a few scratches and have to repeat a step. Anybody have any tips or tricks?