Finished dimpling the left skeleton, then deburred and dimpled right skeleton. Used Vice-Grip dimpler for the holes on the forward tips of the HS-606 ribs. Riveted the front ends of the HS-405 ribs to the front spar. Removed and deburred the right skin, then dimpled. Sanded and polished the edges of the skins. Peeled the protective plastic from the inside of the skins, and also in thin strips down each line of holes. Strips were very time consuming — not sure if this is worth the time expenditure. (Note: I found out later how to cut these strips with a ruler and a soldering iron. Boy do I feel like a dope sometimes...!) Sanded, cleaned and primed the insides of the skins.