^ yes.

as for the FSM, it reads to me like it doesn't specify how to actually adjust the anchor bolt, weight on or off, it just specifies how to measure ride height.
once the car rolls about 3 feet the suspension will be fine to check and if it's actually getting aligned the front wheels will be on plates so it doesn't really matter.

i put a smear of grease on the ball and cup of the adjuster when i put that stuff back together...and i adjusted height with weight on the tires with no problems. I've also jacked the front up a bit (when the old crusty parts were on the car) to get some weight off the tires...so i could use a regular 1/2" drive ratchet and turn the bolt faster/easier...