Rolled leading edge of Rudder per plans. I used a 1" steel tube to start, then used a 1.25" steel tube to finish the root leading edge. The 1" tended to over bend the skin at the root end of the rudder leading edge. Next time I would use the 1 1/4" tube for the root sections, or maybe try to start the bend nearer the spar. In any case, it turned out pretty well after I pre-bent the overlaping skin edge a little to ensure it stayed tight against the inner skin.