Here's my best effort from the early hours last night.

I imaged both with a V filter and unfiltered. With the comet being so low in
the sky, unfiltered images showed the effects of atmospheric dispersion
smearing out the star images slightly plus more sky gradient, so although I
have a stack of 24 x 30 sec unfiltered, the 15 x 30 sec stack is the better
result.

No background sky gradient filter has been applied as there are subtle
contrast differences, which would otherwise be lost.

Also have a few B, V, r and i images taken with the 0.35-m I've yet to look
at.

Richard