Not sure who all knows about these but I ordered some Cook bandsaw one-inch blades for my new 513 Grizzly. I've been using TW blades and a few others mentioned on the forum. Haven't used the WS blade, so can't comment on it. The price for the Cook blades were considerably lower than other blades I've bought. And man, did I say sharp?! Very, sharp and I've cut quite a number of logs with bark on and am still on my first blade. From my expereince so far, these blades hold their sharpness very well, much better than the TW's did under the same cutting conditions. Five blades sent to my door were less than $100.00. Thought I'd pass this on in case some of you all don't know about them. I'm not affiliated with them in any way. Just by chance discovered them when researching bs blades. So decided to give them a go, and am glad I did.