....with entering concours competitions I felt that I had to change them
Guess I'm just a saddo then. I removed the top 3 bolts (same length) each side to polish them and clean the holes with cotton buds to remove old wax. Can't quite figure why the 4th (lowest) bolt is longer. Oh and the prospect of pulling-out the screen and wrecking it was just so awful I left everything alone, despite yet another unidentified creak/squeak.
