What ever floats your boat. Currently I have the S. Grant side lever bug. They aren't cheap but more of a midrange priced gun unless you get into a pristine example which tend to be very dear in price. Saw a Boss side lever, setup on the left side. It worked perfectly even for a right handed person. Guess if you had the money Boss would supply you anything you wanted. Saw a Boss with a second type Prudey thumb opener hammer gun. Money could get about anything back then.