Well they're as smooth as I could get them anyway.
But I know what you mean - seems like they can get pretty slick!
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Shit. They look great! I ended up getting some of that brown horn from the same place. Can't wait to make a set!! Mine were/are warped a bit too but probably because they come at 1/8 inches which is perfect thickness. I will try to steam them flat. Yours look awesome though :) thanks for posting!
Just as an FYI .... the laminate stuff they sell is infinitely easier to work with and it looks great.