So I got the Alcantara rim for my T300 RS. Feels fantastic, and the larger diameter is perhaps even better than I expected. Again, as always with the Thrustmaster products I buy, I have to return my first unit. The left paddle shifter 'activates' earlier than the right one, and also has much more silent click. I've read somewhere that tightening the screws at the back of the rim helps, but it only does for a few presses here. My T300 RS rim is fine. Very dissapointed again in Thrustmasters quality control.