Yo Bud I like my setup nice and smooth. I went with Air Ride Tech's "Cool Ride" for my six six Impala. System works flawless. I have 1/4 line and was running a 12 gallon tank in my six six. It would get up in 1.5 seconds. But I am now back with a five gallon tank and a Viar Compressor so it rises around 2.5 seconds. And my six six weighs 4100 lbs.
Here is a short video clip
of my car with only a 3 gallon tank. This is right after I installed the system. About a 3 second rise time.
Everyone has their own taste bro. The main thing is you get your ride bagged....... Good luck with you install....!!!!