Tom:
These comments were all very useful to me as a new guy to this hobby. I never even considered "lateral" balance prior to your mentioning it, but see where that could be important.
I also build golf clubs for myself and friends as a hobby, so I have a lot of used and new shafts around my shop area. Some of those carbon fiber shafts that aren't going to be used in clubs may make very good vertical rods for the CG stand. The tips may be slightly large on some of them, but I think I can work something out.
I have so much to learn and a lot of things to relearn..
Thanks,
Harlan