He would have the advantage if the dealer knew wether the hole card was high or low when they checked for blackjack but since the dealer really doesn't know this he probably is not playing with an advantage. His simple counting strategy probably hurts him more that helps him.
Actually.... Using the systems that I assume most of you use, and accepting their common-truths, your statement insinuates that counting cards is a practice in futility.
Let me explain, so I am not mis-understood, yet again:
According to the card-counting strategy... If you were to employ BS with a simple-count, you would reduce the house advantage to approximately 1%.
The normal house edge is arguably 6-8%, dependent on the rules of the table.
The average "Joe" (or Ploppy, as some of you prefer), who doesn't use BS or even a resemblence of it, gives up as much as 20% to the house. This percentage varies widely, so I cannot say any number here that cannot be argued for, or against.
However..... Assuming that I only use BS, and nothing else.... You are telling me that a simple count...regardless of it's simplicity doesn't add...but subtracts from my chances? If this statement is true, then using this same line of thought...every card-counting system would reduce your chances. And since we know that isn't true, then we also know that your statement also, cannot be true.
To the person playing on a team since the 90's(sorry forgot your name).... since you have a table handy....I'd suggest you go to it, and deal out an entire shoe (6D).... If you truely have a table, then you will see what I am talking about. You said you were interested in every advantage....well, you are most-definitely missing one.