Been awhile since I ran my JP1 & dont even remmember who I loaned it to.I last ran it on the original picco evo & hated it & pretty much only run the 3 now(mostly).1 had good upper bottom & mieium mid then the motor would spin but not make power.3 has almost as much or close to the samebottom,killer mid & good ,to a little better top, with good over run but both are low milage pipes.Use the 3 it workes everywhere with almost every motor except the old ninja & I can only assume that means the new GRPs also but could be wrong on that.