Traveling Cookies 2

So I figured out why my cookies travel. I just don't punch them down hard enough. Instead of slightly flattening them, now I push the bottom of my palm down in the middle of the ball of dough so it looks like a red blood cell. Not only do they stay put on the tray, they are also flat and not domed in the middle because I push the middle down so far. Thanks to Andy, all my travelling cookie problems are over.