Rolling the leading edge was not too big of a deal, it did take a lot of effort, mostly in setup, but once I was applying force it went fast. The biggest problem I had was over rolling the edges and I had to use the hand seemer to flatten out some of the curve, not much but just a little. I followed some instructions I found on VAF for cutting out a couple of guide blocks for the pipe, then clamping them down and having the rudder on trashbags so it would slide easily.