Lets say you drive car average 4 times a day. You sit 4 minutes in your car a day doing nothing. Its more than a 24h in a year. I love my HKS type=1. It saves me time and time is money

 

Truth and logic says use a turbo timer. It saves you time and money unless of course you have plenty of both.

 

I just avoid boost for the last minute or so that I'm driving. Very easy most of the time. Then I let the engine idle as I roll up the windows, unbelt my seat belt, grab my stuff, etc. If I'm already late, 30 seconds doesn't really make a difference.