I agree there...
I played a 6-deck game recently where there were multiple players. All eventually faded away. The dealer discovered that I could play just as fast as he could deal, and he was a very fast dealer. I assume that he thought it would be impossible to count at that speed, which was fine by me. I had no trouble at all. But at the speed we were playing, before I knew it, he was ignoring the shoe slot that would position the stop card about 1.5 decks from the back, and he was putting it right near the end of the shoe, about 1/2 deck or less from the back. 90%+ penetration. Makes + counts work great, when they come. Doesn't do a thing for all the - shoes of course.
In thinking back, maybe he did guess I was counting, and that if I won, I'd toke more (I did). And he kept putting the stop card near the end, shoe after shoe. Didn't make a lot of money (I don't seem to make a lot on 6d games although I usually win, but on a good night the wins are usually measured in 100's, where on a good SD game it can be 1000's...
Only problem is that many (most?) SD games have gone 6:5 where I play and I refuse to play it, even though it is probably beatable with a good spread.
I've had some very good dealers, and I have had some that (to quote a navy buddy of mine) "had the personality of a bent shit-can lid.." I don't need help on BS. Conversation is a plus. A bad attitude is not. If a dealer was enjoyable to play with, then I'll generally toke 'im. If he/she is a jerk, I reserve the right to play and keep my hard-earned money to myself...