Finished LH rear spar to skin rivets. Used AD-3-4.5 instead of AD-3-4. Instead of pneumatic squeezer, used the hand squeezer and had no problems with clenching. Just the 6 AD-4-8 rivets in the #1 ribs/frontspar/nose ribs left to do and all HS rivets are done.
Oh yeah, plus a few questionable rivets to drill out and replace. :(