[mrmr]

I figure this would be the best place to go for my tiny problem.

I just picked up a Marvel Universe Contrictor and his right bicep cut joint doesn't seem to fit right. The arm keeps popping off the rod if I turn it too much. It's not a huge problem, it stays on just fine but if I move it around too much without actively pushing it together then it pops.

I've heard of joint-tightening procedures, and if that is what is needed I'm wondering if anyone can give me the low down on one of those. To me it looks like the nub that goes in the arm socket needs to be a tad thicker.