Hi Fred
Hope ya don't hate me buuuuut I dunno..?
With the utmost respect to Mr Murry this image looks very strange to me, the colour is pretty all over the place, although I believe you didn't have all the filters installed at the time, am I right? There are strong processing artifacts too and lots of what appears to be...just noise? I can't tell what is real detail and what is simply a result of overprocessing..? The inner ring looks like it is a "real" feature but the outer hallow is just a uniform lipstick on glass like smear with hard edges that bleed into speckly noise. Overall the image is severely clipped and looks rather unnatural and unconvincing to me. sorry.
It does hint at what your equipment "could" do but I am certain your superb scope setup is capable of a much better result on M104 than this...?
This is a very nice result using a 14" RC:
http://www.astrosurf.com/antilhue/m_...eroRChires.htm
Sure Daniels M104 has a much brighter (but very natural looking) central halo region that hides the core (inner ring is faintly visible though) but I can't really match up any outer disc or front edge details from Richards image to that visible in Daniels, this leads me to think that the detail in Richards is in fact somewhat processing induced?
Mike

hope you're ok with that assessment