Quite right Simon, if DD averages 25 riders per meeting that's around £5600 per grid for two day meets
So with grids for MG1000, MG600, Mich Power Cup, Modern Classic (incorporating F400 Mega twins etc), that should be 5 grids pulling in £28k, then Endurance should pull in around £12K and the Allcomers on Sunday another couple of £k, so roughly £40k to £42k per weekend.
Track hire varies so some its hard to make any money on some and others its easier to make some money and what Hottrax try to do is even out the entry fees across the circuits.
Providing DD numbers stay healthy and pays its way there is no reason we should retain our own grid and with other clubs having expressed an interest in hosting DD in the past, should things change we can always consider other options. Although EMRA was never one of them