Bolding mine. I have heard that this varies by casino, but I do not have certainty. What I do know is that IF a casino counts odds in the rated amount, then they also drop the assumed HE% accordingly, so it is basically a wash.

This has gotten a bit off topic. My point was that when you do the math, each $1 tipped needs to result in a fairly substantial rated amount increase in order to pay off from a purely mathematical perspective. If you know the HE% that your favorite casino is using for each game, then by all means use that percentage in your calculations, but net-net you are really going to be hard pressed to get a floor person to increase your rating amount enough to make this a wash.

Now, most people also get some personal satisfaction / happiness from giving a tip, and that should be factored in as well. Just don't justify it on the basis that the tip will pay off through a higher rated amount / higher comps.

As an aside, if I ever do find a dealer who is willing to do clearly "unauthorized" things in exchange for a tip, my personal approach is to get away from that person as quickly as possible, and definitely to never, ever tip them. Nevada laws are extremely tough when it comes to collusion. Inflated ratings are probably innocent enough, but if you come across a dealer who occasionally "forgets" to take a losing bet from a big tipper, or who seems to get very careless with their handling of the hole card in blackjack and exposes it to the big tipping player, etc., then you are entering some very dangerous ground.