Originally posted by siueclipse
Well.. obviously you have never done it. I used to run 10lbs through 1st gear. Then hit the switch once in second gear. I would jump from 10 to 20lbs in an instant. Now.. if I were to do this I would be going from 10lbs to 27lbs. In my mind, its just a big strain on a motor that doesn't need to be there. You should be able to launch the car well enough on high boost that you don't need to switch boost levels.

It's no different than going from 0-27psi of boost when you leave the line.