I love my 20C it has quite a bit less muzzle flip than the standard slide glock. As far as night shooting, well you can glance over at my avatar and check out the picture my friend was able to capture. But like everybody else said its not anymore noticeable than the flash from other handguns at...
Man I miss my 29sf sooo bad. I cant wait to get another one, hopefully somebody will trade me theres for my ar15 upper I have listed. The recoil is less than you think its gonna be, enjoy it they are awesome.
I had a public defender with the little snub barrel and loved it. Like awjohnson2 said the 410 shell is a hoss! But if I were to get another one i'd go with the 3 inch barrel for better accuracy.