I've always been able to control the backspin. I've used at least half a dozen happ balls and both the oscar usb interface and the opti-pac. I've set them up with XP, ME and 98se, and arcadeos and Mamewah. I didn't read the stutter thread, but I assume it has the analog conttol settings listed, that's all there is too it. Hey, see if you get backspin going both left and right, and up and down. If it's both, then you can figure it's not the ball, it's the interface or the config...oh and I think all the happ 3" balls I've installed had plastic wheels, they've been fine. Hope this helps!!