He actually never did in superbike. Troy won BSB Championship in '99 and attempted a run in the AMA with getting the pole for the Daytona 200 in 2000 ,only to get a call from Ducati to replace the injured Fogerty before the AMA season ever really got started. Then winning his first SBK title in 2001 - and the rest is history.I didn't even know Bayliss used to race in AMA before he went into WSBK.
And thank you the information!!