theres a site somewhere that runs through how to use the ebc. i googled and came across it.
I set my limit to 45 duty and 15 gain, or was that the other way around..haha i went 60:15 once and hit boost cut hard. What you should do is start of at 8 for gain and set your 4 settings in 5 incriments. start off with 30, 35 40, 45. Then road test each setting. Setting a higher gain will theoretically induce quicker spooling but as with all things its a matter of balance. Mines currently set to 12 as it feels solid on boost. 15 spooled earlier but felt weak.
thats my experience....I may have gotten the gain and duty ratio mixed up so do it at your own risk....research before doing anything.