How many of you use an Air Shifter or Electric shifter using a RPM activated switch?

turbofreek said
get rid of the air and go to an electric shiftnoid setup. rpm based of course. timed is illegal in bracket racing at most tracks.

I had no idea it was illegal to make your shifts on time. Interesting because I know several that do it and prefer it over rpm shift points. I guess its just preference but if its illegal I guess what I use now will have to suffice.