I think when you stumble across it, you'll just know. It really comes down to how it feels to you. Personally, despite all the hee-haw about the XD series, the thing feels like a brick in my hand. The M&P, however, is magic and shoots like a dream. I'm just not a big fan of polymer, which is why I've shyed away from HK and M&P. Plus, the M&P does come in different variations (at least the .45 does, which is all I've paid attention to). Anyway, best of luck and let us know what you find.