Rocket Jack

im not sure about the rules of posting other links here, but i found this neet project that may help a little in making your rockets a little more consitent. this guy took a normal bottle jack and put a pressure gauge on it.I hope im not breaking any rules here, if so let me know.

http://www.rmpg.org/new-site/howto/tapajack/BottleJackProject.html