Your data and facts are incorrect. Wando lost the AAAA State Championship to Eastside in 1985 and 1986. Irmo defeated Wando in 1990 AAAA State Championship. Wando then beat Irmo in 1991 and 1992, 2002, and 2011. Wando beat Greenwood in 1994.
Irmo is 15-10 in State Championship Games (13 as AAAA; 2 before Size Classifications were used)....Wando is 5-3.
http://www.schsl.org/2009/pfbso.pdf

Next, to discuss the Palmetto Cup, Wando has made the finals once before, losing to Bishop England in 2010.
http://scsoccer.com/bcsoccer/pchistory.htm#champions

While 30 other schools will have someting to say about it.....I suspect an Irmo-Wando rematch in Columbia on May 21!