I have a feeling there was a dollop of irony in the post from Mr. Bits ;-)
The paint powdered up today, so I sanded a bit and then used some AquaCoat filler which dries transparent. I have used it over color in the past... As well as over shellac, raw wood, wood hardener, and top coat. Will put on one more coat today in the bumpy spots, sand, and keep fingers crossed.
Well my experiments to gently (and in one case not so gently) remove the sticky on the binding have pretty much failed.
I got the best results with the not-so-gentle use of a razor blade. Not very satisfactory though. I was able to remove some, but not completely and sometimes it just moved gummy around.
I tried a gentle brush cleaning soap (called Pink Soap) by the mfg. It's what I used to clean my brushes after use with the clear coat. Did not harm the clear coat (good!) did not much bother the gummy (bad).
I also tried lighter fluid. One forum recommended the use of naphtha, which I could not get at the big-box store* But then I saw that it was used in Ronson brand lighter fluid--which I have. So I tried it...only to discover that it (a) wasn't naphtha but rather butane and (b) didn't do any better than the pink soap.
*No big green shed here. The biggest one is Orange. We don't have a fun nick name for it because shopping there is not a joyful experience.