@Nickvandervelde
You could try an introductory rate and see how it flies. Just remember that you’ve invested in a specialty piece of equipment and you can’t be giving yourself away.
Since purchasing my Lift in late ‘17, I’ve done a good amount of sub work for other tree services. It seems now that most of those companies simply refer a new client directly to me. If it’s a repeat client of theirs, the bill goes to the contractor. I’ve also had the contractor work along with me, but they ask the client to pay my compensation directly to me at the end of the day.
One of the nice things is when you build a nice relationship with a contractor and they allow you to decide if you want to do sub work with them or your own crew. In many cases, they can continue with their regularly scheduled program knowing the job is in good hands.
I have also learned that market pricing can vary quite a bit throughout a given region. It can be hard to set one price and stick with it across the board. Try dynamic pricing if you have to, or stress an introductory rate that you’ll eventually raise after they see your capabilities. Also, try not to give up too much travel time (compensation one way, etc...).
I can’t speak for all markets, but somewhere in the realm you indicated in your first post sounds fair. Best of luck to you, and welcome to the simple inside community!