Hey guys! I've been a GSSF shooter for 6 years and now that I've acquired multiple Glocks, it's time to compete in multiple classes. I've only been doing just one class: Amateur Civilian. Now I want to do Am Civi (with a Glock 17), Am Subcompact (G27) and Am Competition (G35). This will be my first time shooting in more than one class. So on the day of the event, what should I expect in terms of time and preparation? Thanks for the advice guys.