What is the tooth arrangment for the cutting wheel supposed to be, and what are the distances supposed to be out from the center of the cutting wheel? I just picked up this grinder and used it and it seemed to be jumping and bouncing alot? The guy i bought it from said that he replaced a couple of teeth on it. The only experience with grinders is with a dosko walk behind and there is a guage for setting the teeth. I went around tonight and evened out the teeth with a make shift gauge to get them close. The teeth he put in were off quite a bit. I got them as close as I could and it really seemed to help. Any info would be greatly appreciated. Thanks!