For a racer or track day rider, these are not a cool thing to have like they were '99 or '01. They are required. Next to a bad suspension setup, the quickest way to wear our a $469 set of tires is put them through multiple heat cycles. Tire warmers...
So, talking to the guys at the bike shop about tank slappers, one person PMing me and asking me about head shake and tank slappers, and another posting to the board and asking about head shake, and then, finally getting a chance to read Road Racing World...