Thanks for the warning about using sandpaper. I didn't think about the possibility of leaving imbedded grit! You guys saved me, not for the first time.

I did go with the pumice stone. Again, you were right. It seems to lift a very small "nap" in the glazed leather. Followed this with neatsfoot. Waited 24 hours. Better, but after 30 passes with a razor, the leather again became glazed, though less so. Long story short, I've repeated the pumice and oil treatment a couple more times, and seem to be getting closer to what I'm looking for. I think I will get there eventually, with a little work and perseverance (funny how that always seems to work).

Thanks for others validating I'm not the only one who's encountered this issue. Even if it means periodic "treatment" to keep the leather as I want it, I'm looking forward to a long and happy relationship with my Latigo.