Tony,

the standard boxes are not that bad,i managed to do Croft and Donnington this year with slicks on and still managed to drive home afterwards.

ok, they broke before the trackdays and used standard boxes re-fitted but they stood up to it.

i did Donnington on the 29th and 3rd gear broke again.

that was the first time its gone when driving a bit hard,normally it goes when driving it on a sunday.