Seems to me most ST80s weigh around 3,5-3,6 kg (7,71-7,93 lbs.). My '79 ST80 weighs 3,3 kg (7,27 lbs.). I've had a ST50 that weighed 3,6 kg (7,93 lbs.) and that 300 grams were really noticeable, ST80 feels featherweight, ST50 felt just like my humbucker-equipped Guilds.
SO my question is: how...