Gunner, I have the opposite problem, relatively small hands and a fused Left wrist. My right hand does about 70% of the work. I have done a grip reduction, stippling and relieved a lot of material from the rear of the trigger guard which helps some in getting my right hand higher on the gun. I practice frequently w/ right hand only which requires a tight grip and concentrates on trigger press, not fast but good trigger pull exercise.
My left goes high w/ the thumbs stacked and applies inward pressure as well as some grip. Good luck.
mike r
