Mine are 14, 11, 8 and 5 (she was a surprise) so I know your pain. Never been Gaming Chair for a convention, but I was Staff for 3 Dixie Treks and 2 DragonCons, Long, LONG ago in a decade called the 80's.
Anyway, do what you need to do, and if you have any files that need to be debugged, send them to me at:
tomc300@comcast.net and I will see what I can do.