I'm sure there is something to it. I became a firm believer in good, non-contaminated, Scentlok clothing for bowhunting this year. I had some totally unbelievable things happen while on stand with deer close and downwind. I'm thinking seriously about the HECS suit next season which blocks the animals from detecting the electrical waves put out by a human or predator. A lady I know, who is very successful bowhunting big bucks and killing mature gobblers in the spring, swears by it and won't go in the woods without it.