I gave up on the products years ago. I use the wind. And even when the wind isn't doing me right, I've seen elk and deer just hang around in confusion / curiosity when they catch the scent. Some of these animals are odd critters and I can't explain it. I had a small bull graze his way into my scent stream from where I was set up, he startled, jumped and ran in a circle, then calmed down and went back to grazing. And yep, he grazed his way right back into the same scent stream and flipped out all over again before slowly moving off to another place to eat. Same goes with sight too; I've seen both elk and deer stand and stare at me after catching my movement. I've had a herd of mule deer follow me around while I'm elk hunting, and I've called in a bull that saw me but forgot about it due to the cow calls he was salivating over. Sometimes they bolt right out of there, sometimes they don't know what to do and end up hanging around to get killed.