[neallewis]

This video shows the sort of curved ramps I mean.



Sure that's a much bigger and faster track, but some small curved ramps like these will be great I think.

Also this:


Which shows the dots James means. You get 1 or 2 inside the box with a spectrum radio gear. They seem to have them at touring car races also, so must be available from somewhere?
The second vid also shows some small curved ramps with what looks like a flexible sheet, with three batons under, central one bigger than the outers, with the board taped to the floor. That seems to form a nice curve, but will be easy to store?

Also, what about halves of tennis balls stuck to a sheet of wood or carpet?