No regrets. I didn't buy this car for the luxury and gadgets, I bought it for the power and handling. Now if it was my daily driver, I may have made a different decision, but I doubt it.:ford:
If they look for it, they will be able to tell it has been flashed. They may or may not look for it. It depends on your dealer. If you put it back to stock, they may not look for it since you haven't had a major failure.
OP, I think you would be OK with that weight in Alabama. I have a big concern about cold oil pressure. Mine runs 90psi with 50 degree oil until it warms up. I am afraid to go with a thicker oil for that reason. Don't put much stock in what was done in 11-14 coyotes as the heads were redesigned...