Your basic skills such as sighting in on a target and presentation will be the same, the mechanics (revolver vs semi-auto pistol) will differ as you already know. Practicing the basics will make your transition to your final gun of choice easier and certainly cheaper. Good luck!
My two cents, don't use the steel wool. It leaves bits behind which in my experience start to rust. The CLP and cloth escallating to the Scotchbrite pads works for me.
Have you tried Brownells? The link below goes to Magpul Anti-Tilt followers:
Brownells Search - World's Largest Supplier of Firearm Accessories, Gun Parts and Gunsmithing Tools - BROWNELLS