According to local talent - the horizontal stab can be used as the datum line for a 4Star60. I will confirm that with SIG techs tomorrow morning (they've already gone home [>:])

Kit wing incidence specification is +1/2 degree
Actual wing incidence is -1/2 degree
Differential: off 1 degree - can be shimmed at the rear mounting block
Tough to get accurate reading because aileron spans entire trailing edge of the wing from tip to fuse.

Kit engine thrust angle specification is -2 degrees
Actual engine thrust angle is nearly -3
Differential: off 1 degree - can be shimmed w/ washers at the bottom of the mount

Comments?

Pic 1 is horizontal stab
Pic 2 is wing
Pic 3 is engine mount