Hola,
Yes, you could start at your left, and at your right, but for the right you have to turn the starting grid and so the base is at the outside, for the hand throttle is bad, the wires are on the track !
Please, see the back of the starting grid to change the wire to have the start at your right and the base on the good side.
The must is to erase a little the white inscritpions on the grid track, to go on the right or on the left. And after just put a reverse swith on the red and black wires.
