I'll say this ... regardless of the problems I've had with my SP7015, I would buy another one in a second. The reason is as you stated ... you can grind stumps faster than anything else out there. Once I got the hang of the remote control, I can make this machine dance. It is crazy how many people bring out their video cameras when I am on a job. I have seen all of your Youtube videos and I love the one you did with the Cottoneyed Joe music. There are a million questions on this site where people ask if you can make money in this business. Without getting into specifics, if a person markets themself right, there isn't a reason in the world that they can't pay for one of these machines in one season or less. I keep very accurate records and I know exactly how much I make per hour of machine time. The SP7015 sips fuel. I have the four cylinder 66HP turbo diesel Kubota. Running my grinder wide open, it uses a gallon and a half an hour. My grinder and trailer weigh over 8,500 lbs. I never go anywhere without hauling my "moving billboard." It gets me jobs at least a couple of times per month. I have a Silverado with the Duramax diesel engine. I spend over $500 per month on diesel fuel. My drinking buddies (coffee drinking) think it is insane that I spend that kind of money on fuel. They don't realize that when you are spending that kind of money on fuel, it equates to a LOT of stump grinding work ... thus a lot of money. I have also seen on this site that you can't make money stump grinding. I guess if they can convince a bunch of people that is true, it is better for you and me. Huh? Some people say they hate stump grinding. I had a great job and punched a time clock for thirty years but it was a job working for the man. I accidentally got into stump grinding after I retired and I absolutely LOVE grinding stumps, especially since I bought this unit with the remote control. People always tell me if I am going to charge them that I should at least make it LOOK like I am working. On the other hand, if someone thinks they can buy a $60,000 machine and just sit around waiting on work to come to them, they will be paying for a machine without getting work. You have to market yourself through serious advertising. After just a few years, they will start getting jobs from referrals. I keep my prices reasonable but not low. I will not beat up my machine for nothing although we have all underbid jobs and I have done my share too. It is part of life. I never raise my price on someone once I have seen the job. If I screw up a bid, that is not my customers fault. I have had tree service people tell me my prices are too low. I have also had weekend wonders tell me they could never get a job at the prices I charge. Honestly, I have NEVER compared my prices with anyone. When someone calls me, I get the job 99% of the time. It is all about presentation. I did get a call just the other day and the man asked me how much I charge and I gave him examples for different stump sizes. He was really old (even older than me at 66 Ha!) and he told me he could have a backhoe dig them out cheaper. So I don't get every job. One more thing ... I only grind stumps ... that's all. I do have the hydraulic blade and I do a rough coverup of the hole when done. I don't dress it up with a rake. My customers understand all this and I have NEVER had anyone ask me to remove chips.