I just bang it down to whatever gear and let the lever go. It's designed to be used that way. Besides, do you want to have to be thinking about letting the clutch out while braking and setting up for a pass? Have I scrubbed enough speed off to not hop the rear wheel? Do I need to wait longer? No, just get it into whatever gear is needed, drop the lever and move on. It's a gixxer thing, you'll get used to it.