even on stock im (for now), the first thing i noticed after install last night was improved pedal response. feels a lot less sluggish from a stop without having to mash the throttle.You'll note that the throttle is also more responsive with the larger tb (since a smaller throttle input will yield more area open) and that actually helped me go from a stop to moving in 1st gear a bit. It helped it rev quicker and I could grab the clutch a little more naturally/easily as a result.
no problems with drivability on the morning commute today; a little harsher when simply letting off the gas (no clutch) at low speed/low rpm in 1st/2nd but if i clutch in instead of just pulling off the throttle, it feels the same as it always has.