jimbobborg
Oddball caliber fan
I shoot USPSA Limited Major and 3 gun with the same gun (SVI) in .40 and prefer it on steel for the better knockdown than 9mm. As long as you're ok competing in open class and no IDPA, your plan is good. Have you looked into holsters for it, yet? Bladetech is probably your best bet.
I saw the Bladetech comes with some of the competition M&Ps, along with magazine holders. I use my CZ-75 and GP-100 for IDPA, this will be strictly 3-Gun and bowling pins, maybe Steel Challenge if I can keep the ammunition supply up.