Yes, lots of the DIY guys do that Mark. But....the sacrifice is that is not as precise as a quill
unless it has all machined surfaces, like in an arbor press.
The large area required for the Poly sheet gibs that most of the guys are using, creates a lot of
surface area. A large surface area means a lot of friction.
Single point gib screws would only work if all the surfaces were precision machined.
If you look at all of the wheels that are built for professional use, they all use a
tube in tube lower adjuster.
I'm getting things worked out but still have a few snags. I was really hoping with
all the car guys that are here doing restoration and custom work that one of them
would have a commercial wheel that they could give me some input on.
DG