BTW There's one revolver that's actually easier to manipulate by a lefty the way it came from the factory and that's the Colt SAA. If anyone reading this has one pick it up in your left hand and notice how easy it is to operate the loading gate etc.
Guess What! The Colt SA"A" (Army) was originally designed for the Cavalary. A right handed trooper would be holding the gun in his right hand, the reins in his left. Upon emptying the gun he simply laid it over into his left hand & reloaded with his right, thus it was designed to be both fired & reloaded by the right hand. In loading thusly, he did not hold the SAA by the grip but thumbed the hammer back to the loading notch (Half Cock) & flipped open the loading gate as he laid the frame Atop the reins in his left hand. Once loaded he grabbed it by the grip with his right hand & was ready to commence firing. A seasoned trooper could do this at full gallop & retain complete control of his horse by the simple act of "Neck Reining".
One should not confuse modern usage with original intention.