Ahhh, now that makes sense. Throttle response has increase due to less heat being injected into the cylinder head at low speeds. At higher speeds, the throttle body doesn't have as much time to heat up since the air rushing in allows less time for that area to heat up.
If I can find the before and after heat transfer results from an old post, I'll post up a link. Someone graphed the results of this mod at the I-club and NASIOC. It was interesting.
So you are going up to Atco? I need to ride up in 'Nightrider' (My FWD XT6) to see you in action. Perhaps a friendly challenge is on order.