Hi there, I have followed your progress on a Machining forum and the input from your friend in the US and others - fascinating - even if it did consume half a weekend reading the 47 pages of threads
As a former sheep farmer for over 40 years I have always wondered if there was a better way.
My Father in law had a shearing table that you pulled a sheep onto from a raised race. The back and front feet were restrained in a twin clamp system for each end such that you could rotate the sheep away from you and then roll it back to you. Worked well for a very simple system.
I think I have seen an antique version of it manufactured many years ago by I think Moffat-Virtue.
I will be very interested to follow your development further.
I think there is a shearing table in New Zealand that uses ropes running through a poly pipe and then through a yachting style clamp but can't find the link right now.
Regards
Charles in Victoria, Australia