That is a very good job given what you are doing. I have no idea how Freedom Shields does it but theirs is almost distortion free. I tried one from another company and I couldn't stand it the distortion was so bad. Yet others raved about the company. I'm convinced people do that just so they aren't the only one with a product you can't stand. But doing a curve on a curved surface cannot be easy as you now know. But I think you did darn good. Harley sells one that looks much worse than what you did and they sell those things for big bucks. So pat yourself on the back once your hand heal from the burns.