Well, my 642 Airweight TI conversion didn't go as smoothly.
The cylinder I got from Numrich is defective.

The hole that the yolk barrel and ejector run through is not square to the cylinder...ie - there is a large amount of run-out when the cylinder rotates.

I'm bummed, I don't want to order another just to find more of the same. Has anybody else had quality issues with these Numrich parts...any chance they are seconds?

BTW - I am a gunsmith, not that it makes me an expert on everything, but I can tell the difference between a bad part and a bent rod. - JM.