Very insightful input on this.
I'm now thinking that perhaps an "SOS" or "HELP" would be warranted after all, as not everyone who might see it would have an aviation, military, scout or SAR background. That said, if one is injured, an "X" or triangle would perhaps still be a useful backup option.
EDIT: Seriously, Art? (Just read your post)
Edited by Meadowlark (03/21/09 03:56 AM)
Edit Reason: added response