I had a lot of fun over the holiday break tuning up my older and newer planes. I did a lot of sharpening and that skill has significantly improved. There is definitely room for improvement. This forum has helped me as well as books/youtube etc. I use Norton stones progressing through 8K. My question is this. The higher grit stones are very expensive and I understand you can really polish the blades but do the experienced sharpeners feel that going to 12K,15K, 30 K produces a measurable improvement in edge performance. Thanks and as a newcomer to the Creek, I really enjoy this and the other Creek forums.