To each his own. I'm not a drag racer, so that's not my focus. However, my experience shows the arm does not move off the pin when using my pins/bushings. The fit is a slight interference and the delrin expands a bit when warm. Combine that with an adjustable strut rod, I haven't seen any issues. Like I mentioned earlier, instead of reinventing the wheel, push the t bar all the way forward and put a set screw in the socket if its a concern. It's a simple solution.