Faulty, you're absolutely right and I am honestly not worried about any kind of career suicide. I have (to my knowledge) good rapport with all of the PIs I applied to work with, and they are all familiar with my situation. I can't speak for them, but I'm sure they would all love to be able to offer me some kind of funding (and they still might). The flip side of that is that I would love to work with any of the 6, so funding being equal, my decision would still be incredibly tough. Whatever happens, I will notify each of them with my decision and an explanation thereof. I've found that a little honesty and clear communication go a long way, and if not, then the person might in fact be an asshole as you said.