i came across some cypress at the water treatment plant where i work. this wood was used for a baffling system in a settling basin. the construction foreman said the cypress is very resistant to rotting while being under water. i was wondering, since spruce is also resistant to rot, would cypress be suitabe for a mandolin top? i only found a couple of boards with straight grain that measure about 12"x20"x2.5". the wood seems pretty light weight, but how is its strength to density ratio? any input would be appreciated.