Mate, I'm not way off I have stitched many photo's using my Sigma 8 mm fisheye. If I was "Way Off" then my panorama's wouldn't stitch perfectly now would they?
If that is how you repay someone for trying to help you out. Just straight up saying "I'm way off"! I don't know why I bothered?
Lets see your example of a finished stitched panorama in a viewer, based on your new improved nodal point then.