I have a Happ 3" PS2/USB trackball that I paid way too much money for to have issues.
After tweaking some sensitivity stuff early on, it worked very well in my various trackball games (GT, Centipede, etc.).
Then...about 6 months ago I started getting massive "lag". We all know the story. I've tried every setting possible and on the UP of the Y axis it gets that nasty lag. It is easy enough to test in Windows (not even in Mame). However, I don't get that lag going DOWN on the Y axis.
I'm guessing something inside is worn out/broken.
Can anybody tell me what I need to buy/replace to fix this issue?!