It stays in the L position, very rigid, and very sturdy. Weighs about 12 pounds with everything, including the laptop and 15-foot heavy gauge extension cable. I've made 10 of these for folks throughout the US, but the cost of shipping is insane, so I recommend that most folks make it themselves and save the shipping cost, which is nearly $50.
Good luck,
Gary

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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)