Did the same thing a month ago. Great gun works just as well as the normal walther. The downside I see is I really need the extra finger rest on the mag. My shooting is a good bit better at 25 yards with it. 10 and up theres not much differnce.
Put about 500 through and the trigger grit goes away. I also like how the recoil spring works, even though its a bitch to clean.