Situation:

I have a "very tight" image at the table in our home game. Of course, this is a relative term seeing as how much people at our table are probably seeing 40-50% of flops.

I make continuation bets, semi-bluffs, and reraises w/ good draws occasionally. I'll play my position, but outside of that, tend not to bluff much at all in these small stakes games. Doesn't seem worth it with all the calling stations.

My main question is this:

How should I best exploit this image? In the past I've tried convincing them that I'm not tight, but it certainly doesn't work. Their image of me is formed in stone.

The Good:
- My raises are well-respected. Preflop, a 4-5x BB raise from me will fold out all but one person usually at a table of 8.
- Semibluffs are effective against average players

The Bad:
- Very hard to get paid off by the 'usual' players at the table, because they know I've got something.
- Some very aggro villains constantly come over the top of me on a flop pot-sized bet, knowing that most of the time I won't have a strong enough hand to call/push a re-raise.

What do you think? How do I make the most money with this image?

Should I stick with it, or start showing some bluffs? What works best?