So everyone can say "I told you so". My stump removal failed, although I didn't give it too much effort because I didn't want to break my tractor.
But I'm happy with my Piranha tooth bar. Digging is so much easier now.
I'm going to try and rent a stump grinder. Where I am, they get a minimum of $500 to come out, too much to grind one clump of stumps.
If I can't grind them at a reasonable cost, then I will just build my shed in front of them. I wanted it back further, but the cost may not be worth it.
Love my tooth bar!