I'm a happy man.
I was WAYYYY overexposing my tintypes under the enlarger. I started out with 10 seconds up to several minutes. I was essentially getting no image. I finally figured out I was way overshooting the times. With the lens wide open, the correct time is 1 second, yes 1 second! I stopped it down two stops and settled on 4 seconds. Also, the instructions suggest 2 minutes in the develop. Try 12 minutes for the image to fully develop.
I got my first successful image. Now I need to work on pouring the plates. I need to put a big sign in the darkroom that says "the emulsion does NOT to be shaken!" Air bubbles dontcha know.