T'were I you, I might be tempted to piggy back a 80mm ED refractor on that rig and gain the benefit of a dual platform that can do wide angle too.
What is the mount and what eyepieces do you use? There is a world of difference between a few Plossl eyepieces and say Vixen LVW or Nagler eyepieces.
The mount has to be stable and offer decent tracking and carrying capacity. I think I know the scope a short barrelled (800 mm f4 focal length) 8" Newtonian on a decent mount can do somethings. I prefer longer focal lengths myself, even for astro photography. What exactly is the mount you are using, and is it properly polar aligned?
Also suggest you get a free copy of Cartes du Ciel and learn the night sky better, and/or drive your scope through it via ASCOM drivers if its a goto mount?
Anyway - a big welcome aboard!
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