We have had several trees cut that were close to our house. They were a general mixture of pine, oak, wild cherry, sweetgum and poplar. I have seen where a stumpgrinder had been used, but have never seen one in operation so I don't have a clue as to how hard they are to operate. Would you recommend renting a stumpgrinder or hiring some one to do the job? If it is very strenious, due to my health, most of the work will have to be done by my wife and daughter. All suggestions will be appreciated.