I think that line lock couldn't hurt depending on how much you do in fact race. If racing is not something you do on a regular basis then I would have to say the time/money you or someone you hire would put into it wouldn't make it worth installing. I do however feel that it is a pretty little ingenius invention. It seems simple enough to install, but how good is the reliability...I'd say go for it, assuming you could put the button in your console and keep it lookin somewhat stock/normal. Go for it. and I'd definately like to know how it helped/hurt you 1/4 mile times. I realize there is no added HP from this, but theoretically it should help you improve your reaction time...woohoo!!!