The belt clip is nice for a pocket carrying. I don't like it for in the pants carry. As for the better holster for OHIO, hmmm, buy the one that fits the 3AT with the Arma-laser. Please check out their widget. I like the fact that the printing, shape of a gun, is almost nonexistent in lightweight pants. Also I have better recovery between shots with the added, 1.3 oz., under the barrel. Expensive it is but so worth it.
Practice with cheap ammo, but maybe stay away from magtech. I can not empty a clip without a FTE with that cheap crap. Sellior and Bellot is also problematic with my 3-AT. PLEASE do carry heavy Remington golden sabers in the winter, goes through more clothes, and the all copper Corbon DPX in the summer. These Hp's have really round bullets and I have never had a FTF or FTE with either of them.
Enjoy and thanks for getting your CCW.