I won't argue with u but will say this I've seen 1000s of coyotes reactions to baits and lures, hundreds on videos, tested 100s of formulations, send formulations all across the country to be tried by serious coyote guys and picked the brains of guys that catch coyotes by the hundreds about lures and baits. I feel confident in what I speak about. I can promise you there's a difference in the quality of lures and baits. I can promise you in my area I trap you will get enough misses and refusals that it will become clear. We don't get a lot of snow but when we do it will humble you. Good and happy are relative terms based of of one's experience and opion. I by no means know everything and there's guys that know more than me but I'll stand pretty firm on what the coyotes tell me and will be happy to share it with others.
Not sure we disagree, certainly wasnt arguing?
IME, order of importance 1) location, 2) Quality urine 3) eye appeal, 4) Lure & finally 5) bait. If a coyote refuses a set, I don't think the majority of time it is because of the bait - it is far more likely due to that yote being skittish by nature, has experience with trapping or there was just too much human scent around. Matter of fact, I personally believe the majority of refusals are due to poor urine and lure far more than from a natural bait.
The majority of "wise"/older coyotes I've caught have been with flat sets with no bait..... many of them with nothing more than fresh urine and a coyote anus tacked to a piece of wood.