My 301 has been modded with the Peak HiFi (which I believe is CTC) brass bearing, CTC brass platter, and the PSU from Ray at ClassicHiFi. With the PSU, you disable the eddy brake. With the [much] heavier platter, there is no reason to induce drag as the eddy brake was designed to do. When Brian Walsh checked my platter speed with the Feickert Adjust+ software system, my speed was spot-on with very little wow or flutter.
I am a bit puzzled by Audiofun's comment about the platter "spinning freely". At least on my 301, the platter will not spin freely-the idler wheel-mine is the Audiosliente btw-is always engaged against the inside platter rim. The Garrard (unless I am mistaken) was not designed to engage and disengage as the Thorens TD124 was. The "on" lever simply engages the motor and does not trigger engagement of the idler.