I was waiting for atlasman to chime in with his 2 pennies.
I'll give anyone who'sinterested my strategy with scent bombs and drag trails. Take it for what it's worth. If it hasn't worked for me on numerous occassions I wouldn't be wasting $6 on a bottle every year, and I certainly wouldn't be defending it here when it seems I'm the odd duck.
#1. Forget the doe-n-heat crap! There are plenty of doe in just about every state. What's your buck to doe ratio?

So it's not something that's gonna bring them running , even if you buy the hot stuff straight from the farm.
#2. I've found one thing that does bring bucks in during the early stages of therut , and it works great. That's the smell of another buck. Dominant buck lure.
#3. During the chase phase I concentrate on attracting does. Lots of doe during the chase phase = buck. I like to use the gland type lures for attracting doe. That's when I make my drag trails , and I've hadmany doe on many occassions hit my drag trail from cross direction and divert their direction right down my trail.
The biggest mistake people make when making drag trails is putting too much scent on their drag from where they start. That will make a deer follow in the wrong direction. You want to start with a tiny bit and put more and more on as you get closer to your stand.
The other mistake I see people make when putting out scent bombs is carelessly handling the product with no regard to contaminating it with their own scent. I use rubber gloves when handling both drag rags and scent bombs.