David, if you like the #4 silk bead cord, try some "Spectra" fishing line of about 15-pound test. This is a high-tensile strength material that they make bulletproof vests out of. It has absolutely zero stretch. This makes it a little bit touchy in the tensioning, because you have to get it exactly right, or it will drop right off of the platter if it is a hair too loose, or won't stretch over the pulley if it's a hair too tight. But, since it has no stretch, there is no "wind-up and release" in this belt, and I think it produces a better speed consistency. It is also a very tough material, and lasts alot longer than the silk bead cord. The Teres specs a #4 silk bead cord, but I changed to Spectra after I wore my first silk cord out, and I like the Spectra better. I only suggest it, because I know you like to "fiddle fart" around with this kind of stuff.
Also, I found bad results from rubber feet. I switched to brass Audiopoints on my TT and it made the attacks and dynamics and decays alot better. I don't know if it will have the same effect on the Nottingham, but if you have some laying around, you might try them. Placing one directly under the tonearm board attachment area of the plinth, and the other 2 in the corresponding triangle arrangement worked the best for me.
I feel the less, or preferably zero, soft material under the TT, the better.
Also, I found bad results from rubber feet. I switched to brass Audiopoints on my TT and it made the attacks and dynamics and decays alot better. I don't know if it will have the same effect on the Nottingham, but if you have some laying around, you might try them. Placing one directly under the tonearm board attachment area of the plinth, and the other 2 in the corresponding triangle arrangement worked the best for me.
I feel the less, or preferably zero, soft material under the TT, the better.