Alexnh said..
Sandwich should theoretically be better, offering two layers of protection and better strength.
Not theoretically. It simply is. Sandwich will be stiffer and stronger for same weight.
trouble is the execution in mass production as you found with your Gong.
Decades doing repairs and making boards for animals to jump 30ft high, and seen all the fails trust me. That’s why I build stuff that doesn’t break.
that’s also why I have a go at the folks who reckon a 4kg or less wing board is just wonderful.
saw it with kiting and now winging - so much rubbish construction and crap spouted about online. It’s no surprise the boards that last are often from the brands that come from windsurfing.
Little startups (that became big) from surfers who now foil so they got foam CNCd and bunged two layers of thin carbon on it cos it is ‘strong’ are keeping me in business 😉