I'm just starting scrolling and have a small assortment. Have not tried them all. FD PS #5 & $7, FD TC #3, 5, 7. So far I've only used the FD TC #7 cutting 1" pine. I also happened to be browsing in Woodcraft yesterday and bought Olson skip tooth #4 and #7 blades. I'm very confused as what works with what. I'm going to cut a puzzle from 1" pine. It is cheap and I have quite a bit of it. I think I'll try the Olson blades to see how they work.