Depends upon the situation, if your hunting a field that had 10,000 snows and 200 honkers. Then I would put mostly snows with a few honk dekes.
If your hunting canadas, and maybe there are some snows around, or you just want a different look for some confidence.
I would just use a few, and put them behind the spread. If you are sitting in your layout blind facing the landing zone, then put them in a cluster behind you type of deal.
What that does is keep the snow dekes out of the landing zone, as not to interfere with incoming canadas, but keeps the snows flying right over you to land, or lining them up right in the center.
Big canadas don't generally like snows, but little ones will, so it can be a shaky situation.