Good stuff Mark, and I can't disagree with any of it.
You go me alright, I went head first into it!
Oh and managed to take some current readings with different Primary voltages.
60v = 60mA
100v = 110mA
150v = 180mA
200v = 270mA
230v = 350mA
A non-linear load as expected.
I also found this useful video,
https://www.youtube.com/watch?v=NLYbzrRna7Q&t=5s
This chap deserves more subscribers.
Using his forumla I caculate a 47uF cap is needed to make the trafo a 'real' load.
I may just try it and repeat the current test above.
Cheers
Ray