Levi, I prefer a horizontal CMore mount like this one:
In my experience it makes finding the dot significantly easier. Loading 9 Major is no problem. As far as the Czechmate goes, it's pretty heavy when compared to a Ti comped 2011:
I'm a big fan of CZs as well, but I prefer my Open guns on the lighter side. For comparison the light 2011 above weighs about the same as a TS. If the weight won't be an issue, you'll probably be happy with the CM, but if you're going to wind up customizing your CM to make it lighter, you'd come out a few thousand ahead starting with a TS. With regards to Open being a more competitive division: that all depends on your area and who's shooting it; Eric Grauffel dominates whichever division he shoots. Are you going to like Open more than Limited? Probably, I do But if you're getting burned out there might be something more going on which a shiny new toy won't fix for you.