I found the top limit on my lift. With the 911 I can just max out the unit and not hit the garage door opener.
I am getting the new rear tires mounted on the wheels. It must be a vast government plot to make the rear tires wear out faster on my 911. The fronts are at 3/4 of the tread left. The rears were down to the wear bars. I bought a spare set of rear tires last fall knowing the old tires are wearing out.