My airweight Chief has highly customized grips. They started as some oversized monstrosity from the Phillipines, which I filed, carved, and sanded till they were right. S&W frames seem to require some sort of filler behind the trigger guard unless you intend to patiently use the sights.
By the way David, I have had exactly as many failures with revolvers as autos. The 44 Mag Super Blackhawk fired the first two cartridges just fine. Excessive effort required to rotate the cylinder one more time, and after that, it was a challenge to unload the beast for shipping back to Ruger. Problem? Headspacing. The fired case moved all the way to the rear before completing its expansion. After two rounds, it bound up completely. Ruger installed a washer (shim!) at the front of the cylinder and sent it back.
Had a PPK/s in .22 that didn't want to cycle with most ammunition. CCI Minimags and one other brand got it working perfectly. The similar PPK has never failed regardless of what it has been fed. That's several thousand rounds.
Do you know of any nation that sends its army out equipped with revolvers?