RE: Test Stand
A much simpler method if you are going run at the field which I normally do and I generally do it when no one is flying as a courtesy, is to mount your test stand to a one foot long 1 by six as I do all of mine and to use some hefty C clamps to avoid drywall screws in the fancy safety tables but mostly I use four three inch dry wall screws and screw the board to the round wire spools that we use also.
This is a lot simpler than the need to tote that table and rig it up each time. Seems to me nailing the feet is may not be to good if you are on dirt or grass. Instead with that table I would use a cord tied to the table top and horizontally back to a fence or tree.