I understand: have tractor, want to use it, fun to do. Just remember that it's hard on your tractor, very hard.
I did 3 or 4 big stumps and then decided that was enough, especially after I watched a big excavator come in and take out a stump in 2 minutes that would have taken me 8 to 10 hours. I currently have a very big maple stump in my front yard. I cut it off flush, planted flowers around and placed a statue on it. It will stay there..... at least until I decide to pay a stump grinder. Regardless it's not coming out. Just too big a hole and quite a mess. Besides, I'd rather save the wear and tear on my tractor.