I appreciate the perspective of betting to gain information and am pretty aware of how to use it. However, what kind of information can be gained by using this against a call station?

I play with a regular group on Wednesday nights - anywhere from 20-35 people. There are several of them that are call stations. I mean... once they get to the flop they'll just about follow you down to the river everytime unless they REALLY know it's hopeless for them. Also, they see me as a bluffer/pot stealer 'cuz I play very aggresive in this game much of the time. Thus it induces alot of calls... which when I have the nutz... is great! I try not to bluff at the call stations cuz I know they'll prolly call me, so I make smaller bets to hopefully draw lots of chips out of them assuming they don't outdraw me. Again, knowing that he is a call station & how can I bet for information?