I think i got a bad batch of premium a few days ago from the station cnr burke & barkers rds. the bikes has developed (directly after the refill) a fair dead zone around 1-4k rpm - actually it's probably everywhere but most noticable at those ranges in the city. first noticed it when I took off from a stop sign, turning right, leaned the bike opened the throttle and... nothing. Bikes still leaning, more throttle, still nothing, hmm now the bikes falling. :? Saved by the foot. we'll see what happens when I refill with some other petrol.