Interesting. I have 2 buddy's that haul for Palomino in Colon, Michigan and both pull Palomino's trailers hauling smaller units and TC's (multiple units on the trailers) and they both do real well. In fact, both had big (Class 8 trucks and trailers (flatbed steel haulers) and sold them and just haul for Palomino now.
In fact, when I bought my TC, I got it through the factory in Colon and they delivered it to my home (I live about 70 miles from Colon on the east side of Michigan).
I think both have 3500 FCA trucks with diesels. The Palomino trailers are all custom built gooseneck trailers.
Not for me, I'm retired and farm. I too have a Class A with all endorsements but haz-mat. I need my CDL for farm stuff.