I have been reading your various posts re concert grand trucks, stage dollys, lifts, etc. Several years ago, I made a special screw jack for lifting grands. It has a wide "footprint" that straddles the grand leg, and it won't turn over. You can lift one leg of a concert grand without fear that it will topple. It's far superior to that "jack-in-the-box" thing. Except for the screw and its metal housing, the thing is made of spruce, and weighs no more than a small metal jack. As I say, it's very sturdy, has a wide footprint, and it won't turn over. You can lift one leg of a concert grand, and take the leg away for repair without fear that the thing will fall while you are away. It won't fall, even if someone pushes on it. I have also used it for positioning a stage truck under a concert grand, one leg at a time. If there is much interest in this thing, perhaps I could talk Paul Jansen into producing it for sale. Jim Ellis
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