Originally Posted by
OCDshaver
I really don't use sprays any longer. But when I did, I used diamond. I had no issues with it. Sure, too many laps on it and you'll find an uncomfortable edge. The key is to understand that diamonds cut fast. If you plan on trying it, just know that you're best off doing 2 or 3 laps and then see how its performing. But sometimes if you have a really stubborn piece of steel, something exceptionally hard (TI comes to mind), diamond spray may just be what will do the trick. I bought one bottle of the .5 and it will probably last me the rest of my life since it gets used to infrequently. If you try it, just go with the less is more concept. I did not have any bad experiences with it.