At first I was happy with the grinder having never used one before. I have the 88-023. After getting good with it I am unhappy with the performance. For one, the grinding wheel is too hard. (yes I have a wheel dresser) From day one it would heat the blades up fast. What i started doing was keeping a bucket of cold water near by so i could cool the blades up. My second gripe is the lack of support near the grinding wheel. As you slide the blade in and the tip nears the wheel in will dip down ward until it passes the cut out of the base and both ends are flush on the base. That alone messes up the most important part of the sharpened edge. The view of the wheel sharpening the blade is bad and the light doesn't help much. I guess this is another case of "you get what you pay for" At the time I just couldn't see spending $1000. on a blade sharpener but now that changed. If my modifications get this thing to work good i will post pictures and a link for the grinding wheel. I ended up clamping a thin piece of sheet metal to the base right up against the wheel and the "dip" problem is now solved. I am looking around for a better grinding wheel. I left a message over at Norton to see if they have anything.