I love this tune It shifts so nice. My only scare is towing with it. I change to the 500 hp tune since I was going to be towing a couple times a week and I didn't like the shifting at all. It would pause in between gears for a second or two and Rev high. I switch it back to the war hammer but it makes me nevouse with pulling. Will the shifting be available for the lower hp tunes? Also I heard their is going to be an update on TakING away the hiss, when would that be available? With sotf does it have to relearn every time you switch power levels or does only have to relearn after a flash