I had much better success this morning, I slewed to the comet much earlier and captured it rising through the trees. I've done a preliminary stack of the images from both camera, and it's looking much more promising than yesterday efforts. I still need to tweak a few settings and restack, but it looks promising.
I put together short animation of it rising behind my trees this morning:
https://www.astrobin.com/lczk1v/0/
In some of the first subs i took this morning (not in video) I could see the tail extending out of frame, given my FOV with this setp is ~1.5 degrees on the long side, i would put the tail at being at least that long.