Got a new pair of 15X10 Convo pros that I really do not want to put screws in to. Unfortunately, this weekend I noticed about a 2" - 3" movement ( 6 runs) between the wheels and the rims. I run tubes in my Hoosier Quick Time Pros. Car seems to work best at around 12 psi. Any other solutions out there to keep this from happening - without using screws / bead locks ?