I was just on 5 Star's website and they now have a tune for 2016-2018 engines.
Now we just need someone to be our guinea pig to see how it performs with the 6 speed.
Our 2021 29A doesn't want to downshift going uphill, instead it makes a whirring noise and loses power and takes forever to get back up to speed. I have made an an appointment to have it looked at.