[QUOTE]Story was that Rolls queried Ford to ask if the spces were too tight and Ford replied no, too loose![/QUOTE
The same in the auto industry.
British engines had the boring error (oversize) stamped on the top of the block adjacent to each cylinder bore. Not a problem with the pistons but it was with the rings. They had to be filed and fitted to suit each one.
American engines? You just ringed the piston, put the squeezer on and tapped it down.
End of story.