whatever you choose to use, always play the wind(which i'm sure you already know). last year i didn't use any type of cover scent after going through 1 smaller bottle of scent killer in about 3 weeks and took 3 does. missed out on a huge bodied 9 pt. because i moved over another 40 yds from where i was orig. sitting
. and also passed on several small ones. i even smoke(which is a big "no no") and pee where i sit.