6 D answer
Generally between -.5 and -2 TC. Though it greatly depends on this #1 factor; how much they will tolerate before realizing that you�re not just a superstitious table-hopper.
If you sit down, it looks worse to table-hop to a new table especially if you are only 1/2 deck in. Also depends on how often and for how many hours. If there are many tables, you can do it more often. Also, depends on how good you are at disguising your back-counting while looking for a new table to play at. If you use a player card, you will find yourself having to stay much longer at a given table. No PC will want to check you in and out every 2 minutes with your card. Use the card only when you need to buy in for more chips or must stay and play all. As you table-hop, keep only a small amount of chips to work with. When you leave, you then just grab your chips and go. No color-up. If you lose your chips in hand, buy in for more. Don't dig more chips out of your pocket. This makes you look like a loser which is a great thing.