Thanks for the info JT. I don't know all the nomenclature on saw blades yet. I'm not in a hurry to cut fast. However, I had to push too hard to make any headway and I always had to stop and let the blade clear sawdust. I have no reason to hurry just want to cut more efficiently. I do have the Penguin Silver reverse and will try it. Thanks for the suggestion. BTW blade teeth were pointing down. I first thought that could happen but blade was in correctly.