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Water level or laser?

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Ddagasso

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E83FD70B-C561-4A56-A315-A050766B8113.jpeg E83FD70B-C561-4A56-A315-A050766B8113.jpeg 98C97D9A-A861-4959-B52E-A5D7842C0A2F.jpeg 5AE7A85E-22C8-4DA3-BDDC-1AD8A5547ED9.jpeg A8B2877F-142E-45FF-8358-A07CEF4221FC.jpeg 56113931-E183-4B99-9D3D-6217A1F9808E.jpeg I am trying to re-rig jmy Pitts and am finding a big discrepancy between a laser level, a water level and a simple measuring tape.

I am trying to Re-rig my Pitts which I thought I had spot on last week but had to order new Clevis forks and pins

I splurged and bought a Bosch self levelling laser and tripod to double check my water level method

As you can see from the photos there is a large (3/4”) discrepancy between the left and right wingtip when comparing the water level and the laser.

When I measure from the floor to the top of the wing the physical measurement agrees with the laser level NOT with the water level ( I admit my hangar floor is not perfect but I don’t think it is that far out

I have always trusted a water level but today left me scratching my head, what do you trust?
 

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