Hi gang,
{EDITED}
So it turns out it's important to tell the stage crew how things work. Make sure they know that the release valve must be completely closed before trying to jack up a piano on the Grand Transporter.
By the way, I spoke with Jansen - they're no longer selling these things so if you have one it's a collector's item.
Thanks,
Zeno Wood
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Zeno Wood
Brooklyn, NY
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