Need some advice. Pulled apart my cabs the other day and noticed the last owner misplaced 3 of the nylon shims for the needles. I ordered them but the dealer screwed up and only got me 2. I have a trip up north planned for this weekend so I don't have time to wait on the dealer getting me another. I was able to find a metal washer in the same diameter and .1 mm thicker. Is it safe to use so I can go up north this weekend or do I call off the trip. My main concern is the metal washer may damage the needle. Unless someone has a spare they could overnight me 
