I do it the same way, Willie.
Take the apprentices with me to teach them how to calculate a bid, and also tell them about the costs of running a company.
My last apprentice, who unfortunately left to become a police officer, lived in Copenhagen, so I let him bid a lot of smaller jobs in the city, to save myself from having to drive in there.
Some of them he bid, and later worked with one of our other guys and I just wrote the bill without ever having been involved in the actual job, let alone having seen the trees.
I most certainly don't agree with Butch's bean picker analogy.
If you pay the bean picker a decent wage, which I do, there is no need for secrecy.