Good luck at Preston Jon do it for the South, then retire
from 40+ as you have won everything 
Kev, by my calculations Jon has already sealed the National title. He's on 414.5 and the max Bof can get is 411.5 (lowest score left to drop is 43.5 and max possible score he can get at Preston is 54), so the 40+ national title has been decided on moto points! Good battle between Jon and Bof all season.
I hope they both bugger off from 40+ next season, the bloody sandbaggers
