Just two - a Model 6904 9mm that always shot low and gave washtub sized groups - this despite two trips back to the factory; and a Sigma 40F. I still have the Sigma, and it's a fine gun, my problem is that I paid too much for it when they first came out, and I "had to have one". I'll never get my money back on it, but it is the softest shooting .40 that I own. I traded the 6904 off years ago on a Model 625 after full disclosure at my local gun store. By the way, on the second trip back to the factory, S&W Customer Service indicated they replaced the barrel and that the pistol was within normal specifications. Their repairs didn't really improve things, and I've been reluctant to try the 69 series since then.

Regards,

Dave