Y' know ... it depends.
For me, with my hands, the Bisley grip definitely helps with heavy recoil but that help comes at a high cost. I simply can't obtain a comfortable grip, draw and fire a Bisley as quickly and accurately as I can a .44 Super Blackhawk with the short barrels and smaller grip with the rounded trigger guard. I don't need a Bisley grip for shooting .44 magnum. I appreciate it with .454.
Tom