i dont agree with low bottle pressure being safe though. alot of times too low of a bottle pressure will cause puddling of the fuel inside the intake from not having enough nitrous to atomize it , and you get a huge intake backfire. especially on the 2 fogger kits where you have alot of intake travel from the foggers to the head ports. that was a good post by greg though.
bottle pressure and tuning the fuel pressure to get the mixture right are the key.
10.61@129 1.48 60ft i like to drag race. i dont like drifting or racing miatas on the road course/autocross. sorry