My better half just started doing this very thing at this past weekend's match. She has a 34, shooting 9mm Blazer ammo- brass magwell, tungsten guide rod, mag release, trigger job, etc. She has two Arredondo basepads, and two of the Dawsons. (Bought both to be able to compare). She still uses a kydex holster, and it doesn't really seem to slow her down. For her, its about the "FUN" quotient, and she says this is definitely more fun. I don't know that you can ever 'win' Limited division shooting minor, but give it a try.
Mike