I own 2 of the Chattanooga 442PC models, and frankly, have been less than impressed. The DA on one was stagey and died on the firing line. My gunsmith corrected this by smoothing the bottom of the recoil spring guide. Also, the sideplate screws loosen when firing and require some form of Loc-tite. The 2nd Chattanooga is merely OK.

I would examine the 642 for the more obvious flaws and go with this model. Be advised there are several 642 variants and I believe even the plant has trouble distinguishing between them.

Kaaskop49
Shield #5103

P.S. Why can't the LGSs in your area order a PC gun for you? My LGS owner sits at his computer most of the day looking for mdse customers request that he doesn't have in stock.