No balsa in any production Parkers. Main formula was basswood neck and poplar body, as mentioned previously. Some prototypes and special models had other combos, but still no Balsa. That said, Balsa (chromyte) was used as an insert on several modern "Lite" Gibsons. Some made disparaging comments about Gibson being cheap, but balsa is actually relatively expensive, not to mention the labor to build up a guitar that way. I've never played one of the balsa Gibsons, so I have no idea of the sonic results... - Douglas C.