Originally Posted by Hipshoot
I put a rubber "O" ring on my 99F to improve accuracy. You might try that! App. 1/4"

Hip

I do like the o-ring / rubber washer idea, can’t see it hurting much for sure. Might reduce the issue until I can get new parts. Far easier to find that than a proper sized lock washer, and a lock washer might not be the wisest for all I know.