Thanks Peter!!
Gary - you're right. 5-6 mins is all I need once I sensitise the camera and take multiple subs. 8 mins still gives near-acceptable widefield tracking - which is as good as I've gotten on a G-11 and EM-200 before. Neither of those two gave me any better unless they were guided.
It's so nice to have the little Tak working like it should.
As always - thanks for your help!!!