Some good info/debate in here, hope it stays civil. Happy to offer my car as a guinea pig for various tunes back to back...
Sal, sent you a PM to see if you would share some of the specifics you like to log using the BT tool. I'd like to log those for a baseline run then load the OEM software update to 240E then a tune. Mike, owe you a call on this as well (will try later today.)