Looks perfectly straight to me, but I still have to rivet the edge and this is where we need to be careful not to distort the trailing edge. Using one of the angles, I decided to redrill a new set of holes more towards the middle of the flange ( ...earlier when sealing the edge, I drilled the holes very close to the corner of the angle so I could not use this for what I was to do next) ie drill out every third hole to about half inch to begin riveting process. I found that if I placed the rudder clamped between the workbench with the bottom placed on the floor, I had the best visibility and access to begin the half set rivets.....worked great. I always try and find the best possible position when riveting to avoid disaster.
