RE: scents
mauser06, you will often have deer come down wind, but it usually happens when you aren't toting a bow and even so to turn and draw that deer is gone. I always hunt the wind and believe me if you ignore that rule you won't be to successful...regardless of your scent free garb or rituals. I don't believe in scentlock suits either, but scent free is important when bow hunting. Every precaution you take will translate to the field. I am not a nut I still often fill up with gas on the way out of town, I wear my camo from home...just dress light and keep my truck cool so I eliminate sweating. I will dress lightly for the walk to my location then get fully suited. I wash my clothes in Arm & Hammer Scent free laundry, shower before heading out with ivory soap and use scent free pit stick. Air dry all clothing. In between hunts I will place my camo in a rubbermaid container with some baking soda, earth, leaves and sticks....ready for next time. That is it not expensive, not hard and works well.
As far as scents or attractants I am not a believer they really work to much benifit. I prefer hunting natural rublines and scrape areas...let the real animals leave their own marks you know.
Grunt tube is a must, just for the same reason you stated to stop them for a shot. Blind calling can be a double edge sword, so stick to contact calling (or visuals) During pre-rut and rut I think rattlin horns are a must(real antlers or sheds), I have taken some great deer that have come to the show and passed many more.
The most important thing to bowhunting, well any hunting really is scouting, knowing your area, different plans, evolving and play the to your favour wind.