They are accurate, tough guns. I have experience with four of them, a .45 and .357 of my own, and two .357's of my shooting partners. They can be tuned, light springs for Colt revolvers will work. Believe the Wolff part number is 32280, IIRC. Only problems I've encountered were primer sensitivity with lighter springs, all in the .357's and a problem with breaking off the ejector button, again on the .357 guns. I believe they've gone to a different design on those as the last replacemment they sent me was definately different than the others. It has now lasted about 3 years.The other problems stem from the transfer bar set up. For light strikes, it's t-bar not covering the firing pin completely and the overall geometry when using lighter springs. The other problem was the rivet/stud that holds the t-bar on the side of the hammer breaking off if the t-bar gets stuck under the pin. This is usually caused by the cyl. pin drifting out under firing condtions or not being in all the way in the first place. We solved that in two ways as far as the light strikes go. On mine, my smith extended the bar. On my partner's, he removed the bar and built up the hammer face. My .45 is done that way now as well. The .45 was my first CAS revolver, and is getting ready to start it's 11th season. It hasn't given me a problem that wasn't my own doing.
As far as the problem with one chamber jamming the gun, the rebate on that one might not be deep enough thereby letting the rim drag.
Hope this long-winded dissertation answers some of your questions. Contact me if you have other questions and I'll be glad to help if I can.....................Buck