Yeah, the slight lag between input from your rt hand to response from the bike. Seems it's a common issue looking through here. Having not ridden another one, maybe it was even worse before the remap. Starting hasn't been a problem, I have stuck a 220CCA Li battery in - though it can understandably be a pig if you're not in N. Maybe I'll have a look at the valve clearance. It's got 25000km on it, who knows when they were last checked. But I still wonder if the O2 sensor is having an impact on the fuelling at low throttle., +/- the TPS too. Dunno.