Specifics on how we fixed the nasty rotor shake on my son's new EBR (and it was severe shake, right from the first mile):
Removed the rotor from the wheel - liberally doused with CRC Brakleen.
Laid rotor flat on a spare thick synthetic marble kitchen counter top we have in the garage and sanded both sides by hand with 320 grit sandpaper
Sanded all four pads on the same flat counter top with 80 grit
Reassembled using all the original "$100.00 hardware" (that should cost no more than $20.00 when you see they charge $6 for a $.50 spring washer- unbelievable)
Made sure all eight pistons in the caliper moved freely (two were stuck)
Torqued the rotor to the new, lower, 16-18 ft. lb. specs.
Nothing to lose, and all is now well - it stops like a regular motorcycle should.
Hope this helps anyone out there that is buying up the old 1190 inventory - especially the 8-10 bikes that Riders Hill just unloaded before they closed shop at Christmas.