In a previous post, there was some discussion about using a lower resistance rotor. To what extent are these rotors interchangeable? My 002 JFD4 distributor is supposed to take a 04033 rotor. I am using the rev limiter rotor now. I have a 04038 rotor on hand which looks like the 04033, but rated as R1. It has the wider tip. I don't want to ruin my new cap by experimenting, but has anyone researched this?