Just wanted to know if anyone here has also had this issue. I have read some posts on other sites and lots of people are having the same issue. I can't get it to stay tight for more than about a month. There are rumors that there is a threaded adapter that would take the place of the "universal" screws and let the knob screw onto the stock shaft. If anyone has found where to get this or has any other suggestions that would help. I've got the Momo Air Leather Race Aluminum. Here are the pics I am seeing on the Net. Anyone know where to get one?