I have had a progressively bad vibration when applying brakes...in front end... ended up changing to EBC rotors and pads... fixed problem.

Those of us that have been doing this riding thing for decades... you kinda know what should be and where engineering was "light" on the specs. Case in point... 1000 lb trike, that can stop on a dime... unlike a 2 wheel motorcycle... you will not fall over with aggressive braking. The Spyders front brakes should be made to handle this normal condition for it. Either the rotors warped or as some would say... the pads create high spots due to thermal changes and that is the vibration. Either way... if an aftermarket product performs under the same conditions... the OEM item is under engineered.

Just my humble opinion based on hands on experience with my favorite street bike ever...