I asked my daughter(Shelly) about the smell and she reckons Llewelyn was probably an entire male. Tups are musky whereas wethers don't seem to produce the hormones, so I expect it's the same for other male animals.
2 to 3 inches could be either just one years growth or neck wool from a 2 year growth. Mind you, Shelly's 2 (neutered males, Ricardo and Gismo) have very different wool. Ricardo's grows longer and finer, so is softer and Gismos isn't as long and is slightly coarser. I reckon that Ricardos 2 years of growth will be a premium quality fleece, I won't want to part with it, lol. It would be nice to get her some return on them as an investment even though they are pets. I suggested getting them professionally sheared this time and recouping the outlay in fibre sales, it will be faster than my hand shearing and less stressful for the animals, plus we will get slightly more length to the fibre.