Well the JB Weld seems to be working.
I say seems because I feel just like I did after shoulder surgery. I know it will never be the same again, so I baby it and worry. It must be the HD ABS material because my old '01 with fiberglass parts never had these problems.
So I super glued the mount back onto the fairing to hold it in place. Then I bought a stick of the JB Weld putty and worked a small piece of it around the base. I let it harden for two hours and trimmed off the excess with a razor blade. Everything lined up and I just reinstalled the fairing. I didn't tighten down the screws as much as I would like to have because I didn't want it to break off again. I'll let it harden a couple more hours and take it for a spin to see if vibration and wind against the windshield will crack it off again.
I wonder if a smaller and lower windshield will reduce the amount of force on the bolts thus alleviating pressure on the mount.