Yes, I find the blades become dull faster when I am cutting stacks of baltic birch. I also cut lots of hardwood, especially walnut and black cherry. I have 2 rows of tubes in my blade rack....the front row is brand new blades. The row behind has the blades that are too dull for hardwood. Then when I am going to cut bb ply, I use one of the "used" blades and throw it out when it is too dull for the bb ply. I rarely have to use a brand new blade for cutting plywood, unless I am cutting alot of it.
Jim