Great stuff Paul... Heaps of detail and I can't wait to see what the RC can do. It got me thinking and I rummaged around and found 1 M20 Ha sub. It was all I could find as on this night the cloud rolled in and it was the only decent one of the bunch. I think it shows that there is a lot of Ha in this area. I agree with you that the focus seems fine.
So 1 X 10 min 12nm Ha sub @ F3.6 bit noisy but it shows the Ha in the area
http://www.astrobin.com/full/107647/0/
all the best
Paul