Thanks for the input
Thanks for sharing your solution of using silicone to build up that little lip. I have seen that lip protruding toward the rear of the car from the A-pillar and couldn't figure out its purpose. Next time I have the hardtop off I'll try the same procedure of slowly pouring water down the roof and see if it follows that lip and then into the car. I'm not exactly sure what portion of the lip you were building up with the silicone, but maybe it will become obvious when I watch it drip.
That was also interesting that you only had the problem on one side of the car. The good side's lip probably gave you an idea of what the leaky side's lip should look like. In my case both sides leak.