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Selab and Onegripper make dope seatcovers here in sweden, basically a silicone cover that offers a kick ass grip even when wet and muddy. google em and see if they are avaliable in the US

I tried it, with a modified linkage though, and it was way to unstable and twitchy for me on a highspeed track. Im going back to 22mm after trying this, on tight small tracks it works wonders imo, you get rid of that "yamaha" feel where you have to wrestle it to sit in a rut wich is better for...