Another thing to consider...
When replacing a ballast with n electronic version, you do not need a four wire/pigtail switch, only two wires are needed for the circuit.
the ballast that funtronics sells requires the 4 wire switch... if someone has a source for a different ballast that can accomodate a two wire I'd be interested to know.
and that two wire switch is it just a toggle style like on and off or some thing different.
Thanks
john