I read in a post somewhere (here, I think) where they recommended using a #7 or even a #9 skip tooth blade for cutting birdhouse ornaments so the sawdust would clear better.
I am in the process of making a large batch of birdhouse ornaments, so I decided to give it a try. I had some #7 Flying Dutchman blades, so I tried these first. No joy. It cut much slower, a tiny bit rougher, and the blades did not last long. I could cut one or two birdhouses depending on the size before needing a new blade.
I didn't have any #9 blades and ordered some Pegas skip tooth blades from Denny. Same result. They cut slower, a bit rougher, and the blades would only cut one or two birdhouses before I needed to change the blade.
Last night I finished the birdhouses cutting them with #3 Pegas modified geometry blades that I was using before. The difference was dramatic. They cut at least five times faster than the skip tooth blades and lasted far longer. I cut ten ornaments with three blades, and this probably would have been two, but I had a catch that shortened the life of one blade.
The wood I'm cutting is all poplar S4S square stock I bought at Lowes except one that I cut from pine to see if the wood made a difference.
Am I missing or misunderstanding something?
Why would the coarser skip tooth blade cut slower and dull faster?