Great idea.!!!
Hows the noise with them?
Like I said, I prefer to wad and wrinkle them up real good a few times prior to taking a walk in them. And I usually do some ghetto Krylon cammo just to break up the hard outline. But, really, I usually don't try to be real sneaky walking into a set. I try to get there, get set up and then I usually wait about 30 minutes before I use a call.
We've even taken some white sheets with us to use as a cover and laid down in the middle of a hillside in real plain view (I'm talking about the side where the snow isn't) and had the coyotes come right on in. I think a non-threatening scent or no scent and lack of movement are more important. But, also, if you do get a couple of dogs to come in to your call, if you don't smoke them, they will NEVER come to that call again. If we are not absolutely sure of the shot (and yeah, even that isn't 100%), we will let them snoop around and then wander off instead of taking a marginal shot only to have a real tough time hunting that one (and all the ones he teaches) again.
There was one, and we don't know how, that had a big patch of bright yellow paint on him. We called him in and then, confused, didn't even shoot at him. On the walk back to the truck and on the drive home, we decided we would come back in 2-3 days and try again and shoot him. We did and my bud got him in the neck, instant kill, with his 22-250. We still don't know how he got yellow paint all over him....ol' yeller...pretty big female. Like a latex house paint and real thick on the neck and back. But I am pretty sure that if we had spooked him earlier, we would not have seen that coyote again. Ok...proofreading...not going back to change him to her. I call most them "him" no matter how they identify. They are fucking coyotes that fuck with the new born calves. Ol' Yeller was a pretty big female. We would rather shoot the females to thin the population but rarely pass on a shot at any coyote.
But, yeah, wrinkle them up, toss them in a dryer with no heat and a pair of tennis shoes. It does make the Tyvek more quiet. My bud just takes them out of the package, wipes them on his truck or on the ground some and then puts them on. One pair can last an entire winter if you are halfway careful but a barbed wire fence will make short work of a pair, too. No biggy, $10. I think I even saw a 12 pack for less than $100.
Do get the tyvek ones, the others we tried were some sort of cheese cloth or something that were far too delicate (you could sorta see through them) and some had some sort of plastic coating that made you sweat. The Tyvek stuff is the way to go.