Removed vinyl covering around holes and dimpled HS skeleton and edges of skin using pneumatic squeezer. Found 3 holes (1 in left HS706 and 2 in left HS708 that were drilled to #30). These had to be dimpled to 1/8" on the skeleton to fit the oops rivet shank. Mounting squeezer in bench vise worked well, as I could hold the part with one hand and engage the squeezer lever w/ the other. Much lighter than holding the squeezer.