Very few responses here are original. This is a topic that's been rehashed repeatedly in magazines, articles, books, and message boards.

A quick look at that tells me X has to be next to nothing, we're talking about an $1100 roll, but we're asking the wrong question, and I'm going to cop out just like everyone else and say something I heard: Going pro is as easy as quitting your job. Assuming you're an adult and capable of going broke and surviving the ordeal, fuck it. Take your shot. Learn your lesson.