Yes these micro focusers are fantastic on a SCT, I have one on a Meade and it makes all the difference. Bought mine from OPT in the US but you can also buy direct from the manufacturer.
They make a terrific difference. Very easy to fit and really smooth to use. I have got rid of my C9.25 and I have the standard "C" Micro Focuser sitting in a drawer. If it fits yours and your interested let me know.