Motor and Platter Clamp Upgrade

Anyone tried the motor thrust bearing, platter clamp and motor vibration absorber upgrades for Thorens, Linn, Rega, Systemdek and Logic tables?

Please write your opinions about these tweaks.
I think that some of them can be done yourself after a trip to the rubber store.You can get some lengths of rubber cheaply that are quite thick,cut them to size and using a special rubber glue(Loctite)glue them into rings which will fit around your platter and/or motor which I have done.I think there is less vibration.Try it and see.