Originally Posted by
RBLove
I didn’t have an insert handy but I used a wheel to show you.

Next time you do it. Post a picture of the foam. Still can’t quite get my head around it. What’s the benefit of it.
I’ve used the premounted predominantly. Unless they were unavailable. Only messed with inserts once back on clay. And got grilled by a few experienced drivers as to what and why I doing it. Never really considered it for carpet