I have tried all 3 of the standard ones that Yamaha gives you, currently I am on the hard hitting map. I am searching for more initial bottom end power is awesome love it but I ride lot of tighter mx tracks / night race smaller tracks and it is pretty sluggish from zero to like 1/8 or little more throttle. I wasn't sure how far with the negative or plus you can go on the tuner ?? I have been searching fro more custom settings and cant ever find anything. Any help would be awesome. I went up a tooth on the rear too, might try another tooth too.