Thanks guys for your comments of which there are many, to answer a few, Trevor I think you may be correct, and I did not really think of that, but that can easily be fixed.
Thanks Dougie, and it was a good conversation we had last night, cheers mate.
Marc, that is the beauty of a Tak, the flex is minimal because all extensions and focusers are screw on, not just inserted and held with a grub screw.
The weight is actually about 2.5 Kgs, which is no effort for the Tak or mount for that matter.
It is now covered in Pollystyrene will send a pic soon, and then i will give it a test and just see how cool it gets.
I'm happy with a couple of degrees or 0, not worried to go to the minus 10's and 12's.
Leon