I called vans to ask for the paper drawing of the airfoil so I could check my alerion/flap rigging. The plywood airfoil I made out of the packing crate is long gone.
Vans told me they don't use that method anymore. they said to use the tooling holes in the outboard wing rib and the tooling holes in the outboard alerion.(use a tight string) they need to be parallel with each other, if the alerion is a little high or low as long as the alerion holes are offset the same amount, the alerions will be in correct trail. flaps get ajusted to alerions.