I specifically asked him about those two items, as he left his alone. Said the same thing as some of us here on the forum. Yamaha spends a fortune on R and D. If they wanted the thermostat to come on at a lower setting, they would’ve programmed it that way. As for engine braking, we both agreed that it’s a good thing to have. All my bikes other than one, have been a Twin. I really like engine braking and don’t want to lose it. I also asked if he could program to run on regular fuel versus premium, as there’s almost a $5 per tank saving. He was strongly against that for a number of reasons which makes sense. Didn’t realize how much of a benefit using premium is on our bikes.