did not find the "old Guy" who could show us the trick to using those tools as they should be

The tip on flipping the stones and getting a second side made good sense
but I still need to get two more stones to finish off the job

I have another question

is that diamond wheel dresser really a diamond? The reason I ask is ours just seems like a bolt-- I'm going to order a new diamond.
and Snap On stuff is not cheap and calling the tool a diamond sound expensive.

thanks for the help
hank