It was a bit silly last year where you could get 3 spins an hour without leaving the sofa.
While that is not possible you can certainly cheat the system if you want late join will take you practically to the top of box hill then an easy 5-10k down gets you a spin.
A choice of routes would be nice though given that to stand even a 50% chance of the bmx you have to ride each route at least twice.