Ever ridden a two stroke? Same principal really all it's doing its moving the start of the power band ( boost) up the Rev range so if your on boost at 4K for arguments sake hold it at about 3.8-3.9k through the bends and pin it coming out you wouldn't noticed the lag if driven "HARD" to be honest but if you would rather stay off the throttle completely then stay ct9 throttle balance is a mind fu*k to begin with but it will improve lap times a lot if don't correctly.