I picked up a used Carver Hunter mount and a C-more, both black ;f, for the G17 and now I'll be swimming in the deep end, but I got a couple of questions first. First, what dot size is best for GSSF? It's currently set up with a 6 moa dot so I know I'll be fine for the 25 yard target, but should I get something bigger for the plates? Second, if I use the six on the M and five to Glock can I switch to say a 10 moa dot for the plates and still be zeroed in? Next, at what distance do you guys zero your dot? This gun is primarily going to be used for Steel Challenge matches where some of the steel will be out to 35 yards, so do I need to zero it at 35 yards and just remember to put the dot a little lower on the closer targets, or is there some middle ground where I zero at say 20 yards?