im not really sure, my buddy rode punx this year, and went through like 3 pairs of them (hes hooked up by them) and we dont ski anything biger than like 30ft tables (its all we got) and he blew the cores out of 2 skis and both under foot edges with in a season...
my bluehouse antics held up killer though, 2 hard seasons and only once i pulled my under foot edge out doing urban did they start to fall apart... there boards though, no flex or anything haha but you can slap them on anything and not need to worry about them blowing up