Driiled skins off of flaperon skeleton. Done with no damage at all! Easy to remove the pop rivets, but you must tap the stem through to the inside PRIOR to drilling the rivet. Once the stem is gone, drill rivet out with 1/8" drill bit.... Easy!! Straightened nose rib and main skins. Removed 95% of dammage. Re-rivet skins toghther and onto ribs. Back to where I was yesterday!