I have a similar pronation problem as some of you here have been discussing. I moved my holders inward and that solved the problem. When I did it I used these T-Nuts and some 3/8ths bolts instead of rivets. This worked well on my grafs because the sole is pretty thick and the teeth on the t-nuts went into the sole just right. I am wondering if I could use the same method on a pair of VH skates. Are the soles thick enough? What is the inside of the sole made out of?