I've never had much luck with a doe bleat and in over 20yrs in the woods, I have never heard a doe make an estrous bleat. Maybe I hunt the wrong places....

I have also never had much luck with drag rags. I think the buck will pick up your scent eventually and shy away from the trail.

I have had luck with just hanging a cotton ball and getting about 30yds away from it, letting the wind blow the scent towards the deer.

Rattling is hit or miss. I have probably rattled close to 100 times on stand, with about 5 successes. The only real reason I carry the horns is to coax a distant buck that I am laying eyes on into range. But then again, I have had luck cold calling.

IMO, the grunt call is the magic charm for bowhunters as I have grunted in and arrowed 2 bucks in the last 2 years.

With all that being said, understanding deer movement and then intercepting that movement is the best way to harvest bucks, all the calls, scents, etc will only get you so far. Used in conjunction with a good setup, they can be awesome. Good luck