Three step knockout punch -- Diamond, Water

[BLM4L]

Would the following be bad idea??
First, a coarse diamond, 2nd a medium Diamond, and the 3rd step being a 800 or finer water stone?

 

[hardheart]

here's a couple grit charts, might help

http://users.ameritech.net/knives/grits.htm
http://members.cox.net/~yuzuha/jisgrit1.html