I think its a good idea, I am contemplating the same. I have had 700 series green(red) teeth, but razor teeth came with my Carlton 5014, and my new 6016. I would rather "cut" the stumps into strips, instead of "grinding" into dust and chips. Razor teeth have some advantages over green, but we have very few rocks here in North Louisiana, just concrete and metal usually found the day you put new teeth on. I will post a video on the difference soon, Clay Bryans Stumpgrinding.