Martyn ( Chuffer on here) has an example.
I was told by Richard W that the brake gear needed some outward adjustment and the wheels were not re-profiled but simply moved out to S7 back-to-back.
Apparently the tyre profile, whilst not S7, is finer than most and thus proved to be just about ok as it is so re-profiling may not be a necessity?
Might be worth PMing Chuffer (in fact I have been meaning to do the same since speaking with Richard, so if you do can you copy me in too?).
T