One other thing... some people were talking about hooking it up to a switch to turn it on and off.

Why would you want to do that? What's the advantage to turning it on and off. I was under the impression this is something you'd want on all the time. I've also read the settings for the pressure and delay should be 100% and 40-50% ...

Is it just individual preference, or is there actually a "best" setting for the VX? What should I be looking for in shifting etc... with the interceptor installed vs w/o it?