Agreed the 10L80 in my ZL1 is clunky as hell especially when the trans is cold on a cool day. It will genuinely hold gears for over a second at times and the downshifts sometimes feel like your going to headbutt the steering wheel. Not to mention my mpg is already shit so it really doesn’t benefit much at all. Best experience auto wise ive had were DCT eight and seven speeds by a long shot.
It really makes zero difference on mpg, I get 11-15 city and like 20-22 tops on the highway