Thanks mclina.
Sorry acarter, I fully understand that Basic reading 101 is a tough course. Sometimes when I take the time to reread something for the 2nd-3rd time I wonder just where did I come up with the first impression. Ususlly it's because I am too quick to demonstrate my "superior knowledge"

and I don't really read the passge, so I make a dummy of myself.
To others, I have built many models for nearly 70 years. Stuffing an alum. tube with a smaller tube or a dowel or a steel rod is something I know how to do. Those skills are something the current ARF crowd just doesn't have much of an opportunity to learn.
Hang in there. The more building / rebuilding you do, the more fun it gets to be, and you will be more proud of what you have accomplished.