The RS flywheels do help out making the lights brighter. I ran one for a while. I had one come appart. It didnt totaly destroy stuff. One rivit sheared and it stuck to the flywheel and took out the pickup coil.
I use to run 4 trail tech lights with a 200 watt stator. Had the 2 stock location, and 2 on the handle bars. It worked good. I got tired of dicking with high out put stators and didnt really ride a lot at night.
I went back to an OEM stator and flywheel, running 2006 head lights with PIAA H6M Bulbs.