Plenty of learning opportunities. Do not take for granted that a well used brake is in adjustment. Bending test cupons on each end and center will NOT give all of the needed details. I bent aileron spars and a couple of the rear spars only to learn that they were .050 narrower in the middle than at the outside edges. After getting the brake adjusted properly I think I am safe to bend the remainder but want to rebend an aileron spar first to validate so need to cut up a scrap rear spar since the blank of the aileron spar fits in the rear spar web.
The test cupons had turned out perfect...