ok, yes, you can sharpen them, but be aware that they cut much more aggressively when you do, making them a lot more "grabby". And it was every 4th tooth I sharpened, not every 3rd. And no, that uneven grinding wasn't the cause of the grabbiness, if anything having teeth ground in further would make the others act as limiters, like the antikickback pawls on a circular saw blade.
You can help support the work I do in making these videos:
Plans for sale: https://ibuildit.ca/plans/
Support this channel on Patreon: https://www.patreon.com/user?u=865843&ty=h
Did you know I have other YouTube channels?
My main channel:
More videos on my second woodworking channel:
My home reno channel: