You could try Elimatrax over your boots. I have not used them but have a few buddies who swear by them. I use all the scent free soap, deodorant, body and hair deodorant, and scent blocker. Everything including my equipment (bow,treestand, etc.)is wiped down with White Lightening or something similar. My buddy and I never enter the woods without doing all of the above, and right before we step into the woods the boots are doused in White Lightening. We see more deer every year than anyone we know, and we do alot of videa taping which means twice the scent in one area at a givin time. Our theory is you cannot do enough to beat the nose of a whitetail as they live by what it tells them.

Shane