NO!!!!!! Run away from Grizzly!!!
I am actually thinking of using the grizz grinder part and sending the motor back. $150 for contact wheel, arm, tensioner, platen, etc..everything but the motor is a good price! I will of course modify it with a pulley system for variable speed and get a different motor. Yes, it can be done with hand files, but it will take a very long time. Koval knife has a few lower cost grinders, like the kalamazoo ones and the procut2 for $500. It all depends on how much you have and what you have access to. I know a machinsit who will help me modufy/rebuild the grizzly, so that is fine for me. The grizz will basically be for low cost parts until I can afford a real grinder. If you want to know what happened to the grizz, do a search for grizzly or under my name. I had several posts about it. basically bad motor they didnt want to replace, but would want me to send it back 2 times instead for repair before i could use it.
where r u from? if you are in Ct or near there, i would say come on down!
Hollow grinding makes a thinner edge for easier cutting and multiple reshaprening. Flat grind and convex grind leave a thickjer edge, so after several re sharpeneings, the edge is very thick and needs to be reground. I like a good flat grind myself and it wil slice better. Hollow would be good for the back edge to think it out, and a flat grind on the main blade bevel would be nice IMHO. Hollow grind also will affect the balance of the blade and make it lighter since it removes more metal than flat or convex grinding. Good luck!