Obviously a subject I'm interested in...three posts in the one thread! My apologies to the OP if I'm hijacking, but I hope this is all of some use to RC owners.
I just did a Sunday morning Google and yes, the Tak collimation scope (TEC100) seems to be the tool of choice/ $270 at OPT. Best article on collimation I could find was
http://tinyurl.com/89eonq8
I also read again on the Hutech SCT collimator ($399 at OPT) but compared to the simplicity of the TCE100, there doesn't seem to be much reason to pay $100 more for a more complex gadget to do the same thing. Although it does have more fancy lights.......Perhaps Marc may like to comment, as I recall he bought one sometime ago for his SCT.
So to cut a long story short, I may take Gary's advice and invest in a TCE100, as I am very happy with the CF RC, and hopefully one day will upgrade to a 10 or 12". so the TCE would still be useful.
One final question: I also read that the GSO RC primary mirror is fixed and that the rear adjustment screws actually move the rear focuser attachment plate for alignment with the secondary and not vice versa. Anyone know the facts?