Time to rebuild?
I set the idle mixture today. It was a little lean before, and seems to idle better now. Unfortunately there's still blowby as you can see in this video (I can't get the video embedded but the link should work).
View My Video
The paper stays down at idle, gets blown up at higher rpm, and gets sucked down on deceleration.
Tomorrow I hope I'll have time to redo the compression test, but I don't expect any different results.