I saw the article in Tweak Magazine about the new electric football game by
Hawthorne. I don't know anything about board construction, but the article
explained the motor on their board was centered at the 50 and had fingers or
"legs like a spider" touching the board to create the vibration more evenly.
The motor however, was not attached to the board a la Miggle. I guess it's
possible to do the same thing with two motors I would guess around the 25
yard line each, but how do you keep the vibration from cancelling each other
out?