What I would say, having aired my paranoia on what you can trust on alignment, is that the fuz markings/indents on my Impact for stab tube, stab anti rotation pins, wing tube and U/C legs proved to be pretty much exactly in the right place after all my checking and double checking. I am not so sure about wing incidence/anti-rotation -- but I didn't them anyway.

This is a refeshing outcome and well done to C-ARF.

I had one of the early Arresti III's and that was . . . well . . . a disaster on this issue!