When I had my Brutale dyno tuned my tuner adjusted the accelerator pump on the PCV. I did not even know the PCV had that option until he told me that it was a up-loadable option.
He first performed the typical dyno mapping. He then started adjusting the accelerator pump. According to him, he started taking away fuel until the abruptness of off-on throttle was eliminated. Took him a few stop/start test rides before getting it smooth.
I immediately noticed a softer transition when applying the throttle. He said the adjustment only pertains to rolling out of 0% throttle/off idle. I have not looked at the numbers on the map. When I get a chance to download the map I will take a look.