I am experiencing very rapid dulling of standard band saw blades during the resawing of the blanks for the ceiling tiles in the media room so I decided to try a carbide blade. I just installed it and did a few test cuts. It seems to cut at about the same feed rate of a brand new standard blade when resawing the 7” black walnut. It definitely leaves a better surface on the cut. The kerf is slightly wider but not nearly as wide as I expected. The plus side so far is that the band itself is much heavier gauge and therefore able to take more tension. The cost is about 3-4 times a regular blade so the big question will be how long it will last. I still have quite a few to resaw. On the plus side they are resharpenable at least 2-3 times.
Paul