So a little update, after getting the results I did on my caly 3.5 with this hone, I found another diamond hone I never use, the little smiths double sided diamond hone with a coarse side (rated at 325) and a fine side (rated at 750 grit) and having wore down my smiths diamond benchstone in 750 grit , I decided to give this diamond a try, So off with the coarse I went, I scrubbed using the diamond hone horizontal and the spyderco UF vertical to me, I used my Edge pro water bottle I have which is just water and a little bit of dish soap, The reason I went back to lap some more is I put the hone up to the light and saw that the scratches weren't uniform, so I went to work, I left the Uf in it's black plastic container to make sure it was having an effect, I saturated the UF and started scrubbing, and the black plastic container filled up with white water, so I knew it was doing something, since this was the lowest grit I've tried I didn't want to over do it , so I did maybe 75-100 passes, afterwards I rinsed the Spyderco off, and put it eye level to light (like murray carter checks his waterstones), and saw a uniform scratch pattern on the hone, after that I flipped the diamond hone over to the 750 grit, and did another 100 strokes, and WOW. It was smooth as porcelain before, and it was shiny , however now It just glistens in the light , after a thorough rinse down of the hone , it does feel like there are some diamonds in the ceramic , but I read this also , and that the true grit of the stone won't come out for a few sharpenings as there may be diamonds, or what ever you use to lap the stone in the ceramic, so I grabbed some old knives and started honing, at first I could feel a bump or two in the ceramic so I worked those areas of the ceramic the most. (I wasn't really sharpening, the knives I grabbed were junk It was more of a test of the hone and to dislodge any debris in the hone). So after doing this and "working the stone" with a buck 110 , to my amazement the bevel is beginning to show a mirror polish, granted I was using A LOT of pressure, but I thought Oh No! I've ruined my hone, so I play with the 110 for about 20 more minutes and the edge is incredible! Again though I'm thinking I went backward as before it was cutting slow now it's cutting super super fast, So I gave the UF a good scrub with some bar keepers friend after the buck and some other knives and the debris feels gone , and that super slick surface is back, So I go back to the caly 3.5 and using super light "western strokes" only I gave the knife I don't know how many strokes but zdp-189 is super hard , well the results were the knife was even sharper! I did the same method both times and with a really hard steel you can feel the stone (sounds weird I know) but the stone felt a lot smoother and after some passes I didn't even bother with a strop I wanted to see just what the hone could do, 3 finger test felt really really sticky , so I grab a paper towel, and sliced it! It did have a few spots that needed to be stropped and they hung up on the paper towel, but a slice none the less, So I did maybe 5-10 passes on Chromium oxide(green compound on leather), and tried it again and grabbed another paper towel, and it sliced it no snags.
Overall I am very happy with the end result and I'm done , I don't want to over do it ,(nor will I ever lap a spyderco again It made me question which was harder diamonds or ceramics ..lol), anyway I did ruin my cheap diamonds, but I have other coarse stones so it was a sacrifice I was willing to make. A little note though, according to other info I have read, If you lap your Spyderco you void the warranty, as they are guaranteed to be flat to a certain measurement. If you are going to do this read up on it first , I read for about a week straight before I tried, and be prepared for a big undertaking, these stones are super super hard , and you will ruin your diamond, If i had the bigger Uf stone I would have my reservations about lapping it as the 2x8 is the same size as the smaller wet dry pieces of sandpaper, as well as the diamond hones. The bigger one would require more skill and or a bigger more expensive diamond to ensure you get the whole stone the same grit. However If you want to take your UF stone to the next level and are willing to sacrifice a diamond stone or 2 and take the risk of by voiding the warranty on your UF if you mess it up , the results are amazing, I really can't speak high enough of it. Just a few cautions though, Lap the stones under running water if possible, If not use lots and lots of water, you don't want to do this dry , ceramic dust is nasty and the water will prevent the dust, as well as providing a lube so that the diamonds don't get ripped out of your hone as quick. I suggest also that before you attempt this run your diamond over some old glass and see the scratch pattern it makes, and after you begin lapping check it on the glass again to see if the diamonds are being dislodged. Be careful and be prepared to put forth a lot of effort in this , but again if you see it through you will have a hone that is great, I have read some water stone gurus rate the stone after lapping in the 10's of thousands of grits ( dunno how true that is), put I do know I will never ever get rid of this stone.
