Yes - thanks for the feedback and comments.
I agree about the autoguiding. I pick up an Skywatcher ED80 next week and will start autoguiding with my DSI, taking images with the DSI II. I will try and switch between the SCT and the ED80 for imaging also. Also, I took this image using a 3.3 CCD focul reducer.
I understand the stars are blown out - and you are right, I tried to get more nebulosity.
I will try and autoguide without a wedge for about 45 sec to 1 min to start with.