Worm,
The 3 grades were seperated for buying and selling purposes.
#1's being large full puds (your 35 pounder could grade as such). #2's are from smaller beaver with full pods or large beaver sorta half empty or #1's that have dried way too long. #3's are those empty shells no matter how large or small the beaver was. This is kinda over-simplifying it a bit but you can get more info from, I believe, Fur Harvesters of America as they put out a pamphlet that not only explains in greater detail the 3 grades but also has pictures and what to look for. Again, I only used #1's for my "Michigan Mud" but did use the other grades for any lure that called for casters for other species. Ace and I talked about the use of vaseline in the past and it could be ok for water based furbearers but like Ace said "I'd never consider it for canines" and I agree. I purchased my Propylene Glycol from Minnesota Trapline Products. But you could also use Glycerene and you could purchase that at the drug store although it's pretty expensive there. I see no real diference between the 2 except for thickness.
Yes you can use the Anise extract from the grocery store.
Mallard, I sold all my lures to Joe to sell at his store. He also handles Ace's lures as well.