RE: OMP Yak build
Paul,
You do have good designs.
I prefer one piece. I like to grab and go. I have an OMP GS540 and I leave the wings on it (80"). I set the wheels on my tool box and wings hang over my truck bed sides a bit. I tape the control surfaces down, tie the plane and away I go. I get some strange looks driving down the road, but that is fine. Seems like wing tubes on profiles have a tendency to wallo out after time. Support is not as wide as a full fuse and the tube moves. Especially if you do not put both wings on at the same time.