My new B67 is slippery, while my 1 year old B67 isn't. Riding will help cut down on the slip factor. (I've ridden in cotton shorts and capris and jeans, which really do rough up the leather!) Multiple (like 5 or 6 or 10) applications of Proofhide help, too.
I did have to tip the nose up a bit on the new one, but not dramatically.
I think it also helps once your sit bones make their little dents in the leather, it seems like they just settle into place then and stay put better.
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