I thought I'd put an end to this one. I've been collecting data over the last week or so, experimenting with exposure times and binning for narrowband. There's a total of around 20 hours data in this with subs ranging from 5 minutes for Ha to 30minutes for S2 so I went a little overboard and need to move on
Also this is first light from the new orion OAG.
S2:9hours Ha:4hours O3:7hours approx with various binning levels. Bigger one
here.