One thing that really gets old in the spring is sharping all my blades a couple times a week. Right now I use a 6" bench grinder, and it seems to take me almost five min each blade. 12 blades a week a 5min is, an hour a week. and that is if there is no really bit nicks in them. And that is a rare occurance for me. So what is the trick to super sharp blade with the correct cutting angles in a fast amount of time. Sears has a 8" grinder but it costs $149. That is a little pricy for just one size bigger that what I already use now. I was thinking like a 12" if they make them that big. Any out there got a 12 incher. LOL So any advice as to what is the bests set up for sharping blades would be great.