if say I want a WOT afr of 13.0:1....I nail it WOT....should it go past 13 like go to 12.0:1 afr (assuming why theres a table for throttle enrichment, like a accelerator pump on a carb) and then should the afr start going to 13? or should it jump down to 13.0:1 and stay there the whole time?