Thanks for the kind words guys. I've never been a huge fan of Kyosho..i've always loved Yokomo buggies, had the MR4BX when it was first released, sold it cos my local offroad track closed..But i find the ZXS really stunning, so i had to find one and get it..I'll be running it once my local carpet ep buggy track is open next month. The ZXS comes with loads of nib spares (at the expense of more cash..lol) so i guess it should be safe to run it and furthermore it's on carpet. If the ZXS doesnt suit my driving style, i might get a MR4BX or a BJ4 WE...