Piece of advise...
Set you correction % at + 20% and -5%. That thing will lean the hell out of it big time... it's a great tool but you kind of need to read between the lines. Start with a map that is closed to the exhaust setup you have and always save on a different name before accepting the trim values. So if it's not working it's easy to go back. I have mine on the bike permanently setup at +/- 2%.
Rule of thumbs.. 7% fuel trim is 1 AFR. Meaning if you go from 10% to 17% fuel trim... it's like going from 14.7:1 t0 13.7:1
Aim for 13.4ish... it's never going to be perfect but nothing that should feel from your butt dino LOL