Well said. I'm doing the kind of diligence you're recommending. My point was that I at least cannot get a good sense of the founders in one meeting. I need to build a relationship and see how they're approaching product, market and customer acquisition even though I don't care about particular projections.
My gut reaction is usually right, but I guess I don't trust it completely yet. Also, I don't need to meet in person more than once, or in some cases at all, but I usually have follow up questions that I want answered.