The single biggest improvement you can make to the shift action of your V11 is to lengthen the shift lever arm and incorporate a new eye end mount hole 12mm ctr to ctr from the original upper hole. Shortens up the shift action to Japanese bike standards and gives the gearbox return spring greater leverage over the shift lever.
It also makes the shift action a little bit stiffer which means you need a little more load on the lever before it shifts gear which makes for a faster cleaner shift.