Thanks for the picture. I misunderstood the grind marks to be visible with the crinkle coat still in place. All four of my 511's still have the finish, and I can't see any sign of the pictured grinds.
JYD #123 The great one formerly known as Architect.
I am now a fictional British television police officer (currently a Detective Sgt) at Thames Valley Station. My governor is Detective Inspector Fred Thursday and it’s 1969.