[jfmillr]

Congrats on the new purchase.
1) yes the switch is located next to your fuse panel down by your left foot on the floor board side panel. That will manually raise and lower the rear wing.
2) No you should be able to turn it to the unlock position and that be it without always having to use the key.
3)Slight vibration. Could be alot of things. But to answer your immediate question ...No you cant rotate your tires. The fronts and the back tires are two different sizes.