you can not deny that you decrease time delay w/ bmcb: w/o one there would be a bit of time in which you are not getting the same pedal pressure (b/c you are flexing the firewall), thus increasing the time delay. it would be the same as if you had too much slack in the throttle cable: there would be a bit of time before the slack would be taken out which increases the time delay. lose the slack: increase the responsiveness: decrease delay.