Don't do it!!!
Yea, you're right, the front strap is uncomfortable, and the things don't shoot worth a d@mn, either. Takes fooooorrrrreeeeevvvvveeeeerrrr to get one ready to shoot. Don't buy one!!!
Cause if ya do, you'll want more and more of those THINGS. Like the K3 in each of the 3 calibers, PSP, M10, M13, M8... Then, you're gonna need more mags for all of 'em, too. Pretty soon, you're talkin' 'bout some real mulah.
Then, you realize that you could sell off your prized collection and buy yourself a nice summer place. On the lake, with a boat, and servants... Nah, don't buy one!!! REALLY. DON'T!