This is what i did to fix. I added some material as can be seen on the photos. sr1 is also off (added material to it also but not in photos). r2 is now about the same size toward the trailing edge as the root and r3. I believe that the root rib should be a little larger at the trailing edge also, to completely correct this problem. This would make the root the largest (the way it should be). I am starting the second wing today with the corrected r2 and sr1. Mind you , this is not a perfect fix but much better than it was...with the fix the aileron cap fits very close. without the fix the aileron will narrow at the root and the cap would not fit right (could easily be sanded though)