I am looking for a Daahub style micro throttle switch to supplement the twist grip throttle on my Cyclezee kit. In an ideal world it would be like cruise control. I am happy with what I guess to be about 70% for cruising into wind or slightly up hill. On the flat or better I am happy providing my own power and still seem capable of between 18 -20 mph. The kit on my Trek 6000 has turned out a fairly light and manageable machine. Any ideas or would it mean a complex controller to handle this?