Norm,
Pete Ebbink sent me this clarification earlier this week;
"The SOS event runs from Thursday 12 noon to Sunday 12 noon.
Here is the SOS web site info.
http://www.sosovms.com/show_of_shows.htm
The NGD show is next door (same convention complex...) and runs Sat and Sunday for the public. I think the exhibitors for NGD set up on Friday afternoon.
Last year the SOS hall was noticeable emptied out my mid-day Friday when those sellers at the SOS show leave their tables, empty, and move over to set-up for the NGD show."
We're going in Thursday PM and will leave Sunday. Hope to see you there. Lyn