Howdy pard,
You are right the two are very different from each other. I have not found the Colt or clone Bisley to be comfortable to shoot in competition. The design lends itself to that peculiar grip with a crooked elbow and the wrist bent, the gun brought up level with the eye. Recoil would be a real bummer! :wink:
I have had a few pairs of the Rugers and I feel the Bisley grip is excellent for duelist shooters or small hands that want to use both of them. Big hands tend to not have great success. Still, just my experience and observations.
I don't know, but perhaps you can buy a bisley grip frame and try it out on a clone. I know you can swap out Thunderer grips on a model P.
Adios,