Now I feel silly! There's the boom right there on the menu screen of my vid... Just nowhere on the box or the documentation.
I'm a brand newbie here at AtariAge, and I'm working my way through the extensive posts on this and similar topics right now. I should have done this homework BEFORE posting my vid, but regardless, I came to the accurate conclusion that the potentiometer sensor settings on the FB9 are way to sensitive for paddle games to be playable.
No, I did not go out and buy new paddles. I have a big box of old Atari gear, including many sets of paddles that I have collected from garage sales, thift stores, flea markets, etc... But I only have ONE working 2600 console, and I wanted something a bit more modern to hook up to the living room TV. That's why I asked my sister for the FB9 for Christmas. I was also considering the Retron77, but that's another can of worms.