Finally got hold of the long awaited Paracorr today, have given it a quick try on the dob and I'm pleased to announce that I can easily achieve focus using my 400D and 10" f5 Newt.
This opens up a whole new set of possibilities for imaging - can now use the 400D and DSI II on both optical tubes. I'm thinking Centaurus A with the 10" and 400D is going to be the first target when the weather settles down up here.
Also pleased to report I've finally cracked 1000 posts