Multible tables and a river bluff

Last night I tried playing 4 tables of 30-60. I am still just amazed at these stories of people playing 8-12 tables at a time. Granted, I was playing 6-handed so the action was swift, but I still don't see how someone could play 8 tables. I guess NL full tables is a lot slower/different than 6-max. In any case, I won't be playing 4 6-max tables any more. I eeked out a small profit, but I seriously question whether I could do it long-term profitably. I found myself on too many occasions just hitting the bet button, not really knowing if I was first to act or whether I had raised before the flop. A very humbling experience to know that I just can't keep up with the young guns.

I played one fun hand. I raised in the cutoff with 33 and the BB calls. The flop was AT8, all clubs. I had the 3 of clubs. Check-bet-call. The turn was a T. Check-check. The river was an ace and my opponent bet. About the only hand a reasonable player could bet here is an ace, or possibly a T. He could easily be on a flush draw and be bluffing in this situation. This was a rather straightforward situation for a river bluff and my opponent folded. There is no better satisfaction in limit holdem when you can bluff your opponent off of the winning hand on the river.