Just another update... The tyres seems great, no problems, but they still have trouble maintaining traction when on boost. It is better than before and I guess when you have upwards of 600+nm of torque (just a close guess ATM), traction is always an issue. They are also relatively quite, or as quiet as the OEM Sport Maxx. Would recommend them. I did also get a good price, which was only marginally dearer than the MAXXIS MA-Z1 some people rave about. I prefered to get a tread design similar to the one I have already. James