No, it selects the mode by sensing your inputs, there is no physical switch.So there is a switch to change shift modes.
I think final ratios are probably the same.I just glanced at the specs on them but everything was looking identical, as far as the motor goes. I didn't check the output gear ratios though but I'm guessing them to be the same also. Those little black boxes can make a machine perform way different without touching the motor though.
Yes. If you floor it it will rev out (hold a gear) longer and downshift sooner. If you put, it shifts early. My test drives with light throttle had me in 3rd by 18-20 MPH.So if you are raring on it it shifts different then if you are putting around