When I go out to my local drag strip I see the drivers of some pretty fast cars doing something and I can't figure out what they are doing or what it is they are using. These cars will run low 6's or in the 5's or better (in the 1/8 that is). When they pull up to the line and after both cars stage (I.E. they light up both the staging bulbs) I'll see some of them let go of somthing and their hand comes flying away from it as fast as they can make it go. I know they are letting off of a button of some kind but I just don't know what it is or what they are doing. I also notice that they cut a very good light everytime. Most of the time it is a 0.00 or 0,01 light. I know these people aren't that good all of the time (or maybe it is just me that isn't that good so it is hard for me get that kind of consistency at cutting the light that good over and over). What the heck are they using or that makes their launch times so consistent? Their hand will either fly away from the steering wheel or up from the shifter. It is evident that they are doing it on purpose and as fast as they can. What the heck are they using or doing? I know iti s controling their launch some how but I can't find anything in the Summit catalog that seems to allow for such a consistent launch. I know I've said this before but I don't know ANYBODY that does this stuff. Well OK 1 guy but I've inspired him so I have nobody to teach me this stuff. Just Car Craft and Hot Rod magazine so you already know how far in the hole that I am. Help me out and teach me. What are they doing? Thanks!