I hear what you are saying and what I have to say is I think that every club should work a table at every tournament. It's for the kids-I know our club has worked a table at almost every tournament this year (2 places we were not needed)-we have either volunteered (by getting in touch with the director before the tournament) or we have been asked to work at a table. If you are worried about not being able to watch your kiddo wrestle you work it out with your club-that is also something that needs to be examined-only giving X number of table worker bands pushes people away from wanting to work.
