Hey gang. I hear a lot of forum folks raving about the Sprint Booster. I checked some threads on the topic and it seems to reduce throttle lag. Is this for both the auto and manual?

I have a manual and I have a hard time rev matching when downshifting. The throttle is unresponsive. In order to rev match, I have to ramp up the RPM slowly... If I press the throttle too hard, the RPMs will completely overshoot my target. It's annoying.

Is this the issue that the Sprint Booster is designed to fix? Is there anyone in the Atlanta area that wouldn't mind meeting and letting me check out their throttle before I spend a couple hundred $$$ on the Sprint Booster?

Thanks everyone.