I have never had a chance to fire a Bisley, but I find that the FA 83 fits my hand quite well. My perception of the recoil is less than the Ruger Super Redhawk. I must admit that although both guns are .454, I shoot almost exclusively 45 colt. With a leather shooting glove I am quite comfortable shooting the 300 grain bullets at 1100 fps all day long. Granted, these loads are quite light compared with the full house .454, but will easily take any game i am likely to see in the Buffalo, NY region. And I like the 2 inch groups I can shoot at 50 yards with it.
I like the Uncle Mike's glove not for the recoil, but because when the revolver rolls in my hand, the sharp edges of the metal abraid the skin on the side of my thumb. Why is it that machinists take such pride in machining sharp 90 degree edges?
I think that everybody's hand is a bit different, and you have to find a grip that fits your hand. And the FA 83 is much better for my hand than the Ruger Blackhawk. Never had the opportunity to try a Bisley, though.
Tom