Quote Originally Posted by walpurgis View Post
Once the damping has been applied, it may be an idea to get an engineering shop to check the dynamic balance, they are equipped with balancing machines.
Audiophiles have certainly done stranger things. I did have the idea of taking it to a Tire Shop who do wheel balancing. They have these fancy machines that check the balance of the wheel after a tire has been fitted. The interesting thing is the ease with which an imbalance can be corrected - little lead weights are attached to the rim of the wheel. I have no idea what such a piece of equipment is called but if they do have some such contraption then a couple of pre-weighed pieces (one gram, five grams etc) could be strategically placed. Come to think of it I still have four 'untarnished' platters ... will anyone offer me odds that they are perfectly balanced!