Honestly, Creeping Panther made a good point. It's definitely not what you want to hear, but the fact is that if you have to ask these questions, you're absolutely not ready to play blackjack on a full-time basis. If you're a poker grinder, you're at least familiar with the swings, but if you've been grinding 5 years, your edge is likely much larger than it would be with blackjack. Your swings can get really out of control.
Also, you seem confused about the ratings process. For those with larger bankrolls, getting the money isn't the hard part—being able to continue to get the money is. If you don't understand how ratings, back-offs, and barrings work, you will not survive.
I understand the whole red-chip thing, and to be honest, I agree with you. I wouldn't pay professionally unless I was making at least the amount of hourly expectation that I get from my other work. I work for myself, so I get to decide what I do and don't do depending on how much my time is worth. On the other hand, I've put in my dues with plenty of hours of red-chipping when I started out. This was not to make money; rather, it was to develop my skills so that I could eventually move up.
My best recommendation would be to learn everything you can about the realities of full-time play before you start. Then make sure you can actually play before deciding to move up in stakes and play full-time.
However, since I get the feeling that you're probably going to ignore most advice that isn't telling you what you want to hear, maybe these tips will be helpful:
- Be prepared to lose a large portion or all of your bankroll
- Play in Vegas with a $25 min unit and spread like crazy
- Keep your sessions under an hour
- Play unrated—I think you misunderstood pit15 when he said that showing ID != being rated. The "!=" means "does not equal." If you get ID'd, it might be because you have to prove that you're of legal gambling age. This doesn't necessarily mean that your name is being associated with you current gambling, and certainly not your gambling history, like your rating would be.
- Learn how backoffs work—what causes them, how to see them coming, how to avoid them next time. If you're full-time, you need to be an expert on this because it's your job security.