Long time no post.
I decided to take a crack breaking through the smoke Thursday night and work out how to use an OAG.
It's definitely a better way to guide a SCT.
Im not sure my imaging train is in an optimal order though.
SCT>Reducer>LPFilter>OAG>Camera. Maybe swap filter and OAG?
Canon 5dmk3 modded
ISO 1600
Astronomik CLS CCD filter
f/7 reducer
31 x 300s
5 x 600s
2 x 180s
Total Int: 3hr 31min
Darks + Flats + Bias used
Bortle 6-7ish
https://www.astrobin.com/5bmtld