Well done! We have a stump that has been in our back yard since we moved in. I keep thinking I should do something about it, but I never really have the time or ambition. They were supposed to grind it when they took down our other tree, but they apparently forgot and it still sits there. You may have inspired me to actually do something about it now!
It definitely is a workout. I am so glad it is gone from there though, as it was in a very awkward spot. Add pictures once you are done!
I will see what I can do. It's been there so long it is probably a bit rotted by now and hopefully it will come out fairly easy!