Thank's to everyone for their kind comments.
Rigel003
I mount my Tak on a Casady Tandem Bar with a 12" saddle, the guidescope is mounted on a Casady Tandem Guidescope Aiming Device (TGAD) which I have found to be far superior to Guidescope Rings.
http://www.robincasady.com/Astro/TGAD.html
I have attached a picture so you can get an idea how it works on the Losmandy G-11.
Cheers
JohnG