I did post on here somewhere about the accelerator feature on my blade, depends on the bike, blade was minimal but you could notice extra lag in the acceleration if you went to the extreme of the settings, can't recall what i have it set on now but the bike is fine. My Duc would benefit greatly, but I don't have the pump feature on its PC3 (non-usb).
The settings only take effect when you snap the throttle past the set % and continue for the RPM's you have set, injecting the % of fuel.
I.E at 85% throttle, inject 20% more fuel for 1500 rpms.
