I've been trying to stay out of this, but what the heck, I'm gonna put my 2 cents in. I don't know the Aerialist and I don't know you guys for that matter either, but I always try to give people the benefit of the doubt. I'll give the Aerialist credit for thinking outside of the box. It sounds from one of his posts that he learned from an old school tree guy, which is probably where he gets some of his ideas from. It blows me away how many people are still spiking during a prune job and topping trees. I still see a lot of companies advertising topping on their websites. These where common practices back in the day. Thanks to research from people like Dr Shigo, we now know that these practices and many others like sealing wounds and filling cavities with cement are wrong. Hopefully the people still doing these practices are not too thick headed to be educated with up to date arboriculture practices. Possibly the worst thing about people still doing this kind of work is the fact that they are telling the home owners that this is ok. The home owners are then misinformed and it makes it more difficult to re-educate these people. The fact that the contractors that are doing it right have to bid against people doing these practices is our biggest challenge. My suggestion for these old school tree guys who have not updated their practices is to pick up a copy of the ISA arborist study guide and read through it. This will give you a good foundation for which to go by for the present standards.
As for the tractor and log splitter idea, if your company is as profitable as you say it is, then I would suggest either a mini loader or an ASV 30 with turf tracks. I used to use an ATV to haul a lot of my slash before I bought a mini. With a tractor or ATV, you still need to handle the material many more times and with more guys than you would if you just had a mini. There would also be no need to split the wood into smaller pieces because the mini would be able to pick up the larger rounds.
I'm not trying to step on anyone's toes here, but the more I learn, the more I realize I still have a lot to learn. Education combined with knowing how to properly apply what you learn is a good building block to success.