OK I went and got some, but yeah I'll keep it in the cold. I have some kind of solder like SMD solder paste, that I think I should have in the fridge too, but I never have, and IDK if I ever used it yet. It's about a 1/2-1oz jar. I've had it maybe 3-4 yrs.
For the mice, I have a box of semi working ones. I have 3 Razor mice with wheel problems, and a EVGA with wheel problems too. The rubber around the wheels is very solid on 3/4. The wheel's hex tip, seems rounded, but it could be the potentiometer's gear that mates with the metal position locking clip
, the plastic gear looks fairly rounded.
I dropped in a bucket of water. It's not working, but it could be 2 slide switches are corroded. It has voltages all over the place that seem normal enough . I need to look at it on the scope and see if the IC's are looking ok.
So I'll now try gluing a wheel in place, I've seen others do it. Some of these I've already replaced cords on, so they are old.