I sure am having a problem sharpening these, i believe they are from david ellsworth, I have the straight one as shown. i bought a diamond hone and have tried to hold it flat on the bevel and sharpen from the heel up, also tried just polishing the top flat area, but neither seem to be giving me a good burr or sharp edge. Tried looking up different information on shaprpening these but not really finding much, if anyone has any info, please help, thanks.106219-img.jpg