I use my 97b for IDPA CDP but it would be perfectly at home in USPSA limited 10. I do all my own work but I have a CZ comp hammer, 85 combat trigger, tactical rear sight, original 85 combat mag release, sp-01 slide release, flat aluminum grips, dawson precision fiber optic front, CGW firing pin, srs, type I disco, trigger spring, floating trigger pin, reduced fpb spring, 8.5 lb hammer spring, steel fp retaining pin, 12 pound recoil spring, and bedair as guide rod. I've trick it out to make it work for me. I'm not 100% sure but I think USPSA limited 10 allows for the removal of the firing pin block but that's all I would change if going to USPSA. Well that and. I plan to make a magwell for my 97b this winter on a mill. Note I said you can use a 8.5 lb hammer spring but you must use small primer .45 acp brass with federal primers. Federal large pistol primers need a 13 pound hammer spring to be 100%. Also, my favorite load are SNS Casting 250 grain .452" flat points. They now make this bullet with the JM coating and you have to load it short but it is absolutely the softest shooting .45 load I've tried. It is also extremely accurate and does not slow down the cyclic rate of the gun at all. Good luck with the gun, you will love it!
