RE: blowing calls or shutting up
Calls work, it's undeniable. You have to use them right and in the right situations. Scents work as well, but again, right place at the right time. For me I just use scents to get the deer into a shooting position. I don't expect the scent to call them in from far away....that's what the grunt call is for. And it will bring them in more often than not, especially during the right time.