I don't understand what's so difficult about programming a transmission or proper throttle linearity to just work from OEM's? It's almost as if they're devolpment test drivers are numb or the manufactures just say that's good enough.
My previous 15 Tacoma tried to get to the highest gear possible as soon as possible, hunted like crazy at the sight of a hill on the interstate and throttle was like nothing for the first 25% and then it'd ramp up quickly making it sometimes jerky and difficult off road or on snow. After a tune, the truck really shifted like it should have originally and throttle response was actually linear.
Same goes for our Subaru Ascent. Torque converter locks up at 17-20mph under normal acceleration and it feels like you let off the throttle, you have to tip in a little more to maintain acceleration which then unlocks the TCC and continues the dance. Then when you near 50% throttle, Subaru felt the need to give you fake gear ratios. Nobody is asking for fake jerky gear changes, just let the CVT do what it's supposed to and it'd be smoother with possibly better economy! This was even worse before tuning with COBB that smoothed out the throttle response.
My 23 F150 isn't bad, but there is a lot of room for improvement. I occasionally get rough downshifts and odd upshifts. Skipping 2nd gear going from 1st to 3rd can be a bit jerky too. According to everyone I've talked to, most tuning companies have figured out how to make the 10r80 behave, plus add a good boost in power. I'll probably tune it in the future.
