[AZK]

Yes, you should always be exercising table selection. Most players function under one set of ideal conditions and can't function at tables with differnet dynamics. Initially you should just switch tables so that you are making the most money. As a player progresses though, he should be able to properly adapt to his opponents tendencies so that any table he plays is +EV. Obviously some tables are bigger cash cows than others. In the most basic sense, I could run over a rock table or play like a nit at a lag table, I know how to adapt to both conditions, but obviously I'm going to make a lot more money at the lag table. If you don't feel comfortable at the table you are at, get up, that's whats great about the internet....