I very seldom use my rear scissor jacks. If I will be camping at one spot for a while yes. Just to take a little wiggle out of the trailer when people walk around.
I don't find them strong enough to do any good. Never use them when I load the motorcycles.
I just thought I might use the rear jacks more often if they were hydraulic run instead of hand cranked. The end of the scissor jack isn't designed that I can't use a battery powered drill on it either.
Allworth: I might take you up on that idea. Might be the best idea so far! thanks everyone.