[Shiraz (Ray)]

Hi Justin. Really appreciate the feedback.

I am also finding it quite difficult to interpret exactly what the test shows - but it certainly can pick up some misalignments that do not show up with central ray collimation, but may still affect image quality.

Looking at your images, agree that the trusses would seem to be the main suspect, but at least the gadget will quickly show the effects of any changes you make to them. Might it also be worth checking the longitudinal position of the secondary? - if that is out, the normal collimation process could require that the primary be angled slightly away from the tube axis to compensate. Anyway, good luck.

Regards Ray