I've heard it called a few names, but whatever it is, I'm having trouble getting it installed on my X-Gaming joysticks. With a little work, I can slide it on partially, but no matter how hard I push, I can't get it all the way around the rod. Am I even supposed to be sliding it on? I'd hope I don't have to hurt my fingers to get this on, but at the moment they hurt and the c-clips are still off.