How hard is the software to learn and get used too?I was reading the User Guide online a lil bit ago,it doesnt seem too awefully difficult,but the only thing im thinking about is in the actual booklet that comes with the tuner when you order it...Does it say like a range for all the parameters you can set,or I mean is it all seat of the pants type deal...Does it go any more into detail in the user guide you get?Just some misc. questions so I know what Im getting myself into!