Well, obviously it is your call but I have been stranded along a road late at night a few times with electrical problems and I would not personally ride around on a bike that might have a bad connection somewhere in the loom.M - loom was involved, so who knows.
I've also done the 1-mile push in full leathers along the shoulder of the freeway in 95F weather (wondering which texting cage driver was going to take me out). That was my Ducati E900 with an intermittent issue with the main junction from the regulator to the battery which had the feed to the rest of the loom running right alongside it in the same connector. When things lined up it would go 100% dead.
To test it should only take a couple of minutes and you could actually just use a 9V Duracell to test for the draw.
If you do find that the reg is good, DM me your address and I will gratis you the parts to run the reg directly back to the battery. I have tons around and would like to see you be solid with the electrical system. You do give up the little red charge light when you do that.
Best of luck with it.