My Pro came dished for moonclips, period. It isn't as fast as the 625 - in any universe - in reloading with said moonclips. As to the short & fat remark re .45 ACPs... hey, I resemble that remark! Hmmm, could be why I like them?
The $48 difference in MSRP of the Pro vs production 627 is worth it, to me, at least, for just the spring-loaded front sight. Mine 'borrowed' my 625JM's HiVis the afternoon it arrived home. My older 627, a beautifully triggered JM PC627 V-Comp, has a black Patridge-style blade dovetailed in the front - and even the PC Shop doesn't offer a different sight. Of course, as said, it was made when they did great trigger jobs on all PC guns.
A friend's - and another range acquaintances - recent PC 5" 627s have not come with a 'great' trigger. I know S&W is concerned that all revolvers they sell will reliably pop all primers, thus the stout triggers.
Stainz