Regarding the "stir" debate...
I did a little experiment about a year ago. You can try this too.
Take a cup of water and add your favorite color of food coloring to it. Add a lot of food coloring so that the color is nice and dark. Dump it in a bucket. Rack 5 gallons of clear water from another bucket on top of the colored water with a siphon. This imitates racking beer onto priming sugar. You'll notice that the cup of colored water mixes in with the 5 gallons of clear water very nicely. Give it a try!
Yup. I don't know why this is so hard for people to grasp.... One of these days I'm actually going to brew an extremely light beer, like a kolsch and tint my priming sugar solution, and get the clearest bucket I can find to use as a bottling bucket, maybe one of those plastic containers from a restaurant supply store, and put 2 or three cameras on the damn thing to have three different angles, and record it mixing, and finally put this damn myth to rest.
It's one thing to be dropping dry sugar into the bucket, and another to be mingling two liquids of nearly the same density.