Go in scent free and quietly.. dont use attractant scents, dont rattle, dont growl, dont bleat... use a grunt call only if you see a buck that isnt headed your way and you want too turn it.

Seriously I know alot of guys who use the same things you do and arehunting good areas,, they have so-so luck,, too much commotion I think!!
I know other guys who just sneak into places scent free,, climb into a tree, remain quiet and motionless, and they kill more bucks then the guys who use all those things!

I have never seen a deer 20' up a tree fighting, laying scents down, bleating or grunting!

but hey "if it works for you" do it!