Yeah, I'm left handed and I shoot a side lever Grant. You are right. The use of your left thumb on the side lever is a perfect fit, almost making it an 'ambidextrous' gun. I've seen several other side lever guns by other manufacturers, and some of them swoop the lever in such a way as to make it awkward for the left hand to use. Grant's design places it just where it accommodates the left thumb. I really enjoy shooting this gun. Good luck finding a good one.