Yep me too, Like the look of beadlocks, By the end of last season the radials had moved round the rim almost 180 degree, moved quite a lot at first then seemed to bed in but I'm worried about applying more torque.
We are only allowed 10" rim in one of the classes we race as well. [/quote]

Coincidentally, the rear wheels I use are 10" also. But obviously I don't make the power that you do. My 9" Hoosier radial slicks move a bit, but I always swapped them side-to-side after a weekend of racing. They tend to settle down after a bit, it eliminates any grain or feathering that may develop and it keeps the balance closer to what it started with.