[tilbrook@rbe.ne (Justin Tilbrook)]

Hi,
Success!!!
Ray your gadget is a great confirmation tool.
Here’s what I did.
1. Took your advice Ray, and started with the secondary mirror making sure it was central and parallel to the axis of rotation. This took some time using the laser collimater. It turns out the laser needed collimating it, was off by 5mm over 2.1m. I also had to allow for the less than perfect fit of the laser into the focuser, I tightened and centralised as best I could. Once this was done I rotated the head and was happy to see only a 2mm wonder on the primary mirror.
2. Next I checked the primary mirror for centre, adjusted slightly.
3. Checked the trusses, all measurements were spot on.
4 Used the laser again, adjusted the primary mirror tilt till the beam coincided on the secondary and back up through the focuser. Rotated the head and only had the initial 2mm wonder, which I was very happy with.
5. Used Rays gadget again for confirmation of mirror tilt, see results in before and after images, a difinite impovement.
I’m one happy camper!
Cheers,
Justin.