Hey,
There's something I'd like your feedback on : as mentioned on several other posts, I find that honing with the PA-77 on the leather wheel is what gives me the best results. I decided to make sure about that this morning, as I needed to sharpen two almost identically shaped gyutos (a global and a suisin).
Both were sharpened back to back, @15dps with a projection distance of 134mm. I had just retrued the SG-250, then after I raised the burr on both knives, I graded the stone fine, then honed on the leather wheel with PA-77 @17dps, 6x2 passes each. They came out at 125 and 135 BESS. I then honed them further on the rock hard felt with 1µm diamonds @15.5 dps, and they came out very shiny... and at 285 and 260 BESS.
So I gave them 3x2 more passes each on the leather wheel and PA-77 and they ended up @105 and110 BESS, which is my usual score for these knives. Any idea what happens here ?