You could try the Olson or FD blades "Two way cut Crown Tooth" that cut either way. When it gets dull you flip the blade over 180 degrees and continue cutting. It does work as long as the blade is not to bent up. I use them occasionally. They are not the sharpest, but on the other hand, you are using the whole blade and you have more control. If you are looking for speed, don't bother. If you are looking for accuracy and nice clean cuts,they may work for you. They do take some getting used too. Just my opinion.
Ben