Carefully straigthened rudder trailing edge waviness due to wrong pressure setting of squeezer and wrong use of flush rivet set.
Not sure this may be acceptable. Reordered all the pieces for the Rudder. Will check with builder support if that could be considered acceptable (i doubt it because of the hard banging)
Following conversation with Lucio Castrogiovanni (Builder of an RV7) it seems that the construction has an acceptable level, however i decided to reorder all the part and rebuild the rudder