Doing my head in now.
How much difference do you see between different chronos?
Always used my F1 to set up, and seeing Express 7.9's spitting out at around 810-815 fps.
Got a Skan Pro 1 to use indoors if needed, but that is showing around 30fps less.
Obviously something going on so I borrowed a Combro hoping that it would confirm one or the other. Combro is showing a few fps less than the F1, but not much (less than 10fps).
Would appear that the Skan is not quite right, but how do I pick the bones out of that lot??????