then I have my set boost for 48% and my gain at 8%...for high this yields 1.1 bar (16psi) on MY CAR...(they are all different but it gives you something to work with) For low .69 bar (10 psi) I believe I did 22% set and 9% gain...When it's cold you have to turn it down (the set %) a few notches to avoid spiking...but other than that...it works fine...You should also set up your warning feature to be a couple points over your desired boost and have it decrease by 10% when you spike. Hope this helps