what kind of Stock "composite" are we talking about
-Graphite faced w/ perforated steel core
-Fiber/cellulose faced w/ perforated steel core
-Metal faced w/ Fiber/binding agent core
if it was bent TOO much, the facing could de-laminate from the core. graphite is shitty like that. the fiber-cellulose gasket (like domestic V8 Fel-pro gaskets) is probably less likely to separate. the metal faced one (which ive had the only one anyone i know has heard of) should also be usable.
-Graphite faced w/ perforated steel core
-Fiber/cellulose faced w/ perforated steel core
-Metal faced w/ Fiber/binding agent core
if it was bent TOO much, the facing could de-laminate from the core. graphite is shitty like that. the fiber-cellulose gasket (like domestic V8 Fel-pro gaskets) is probably less likely to separate. the metal faced one (which ive had the only one anyone i know has heard of) should also be usable.