I just finished honing my Towa flatback. The hair pops towards the middle and towards the heel but violins at the toe. I do not want to go all the way back to the 1K to address this. I might put some extra pressure on the toe on the 6K and move up to the 8 and 12K focusing on the toe only. I am not sure why this happened because I thought I was being careful while setting the bevel on the 1K.