Used this recipe: http://rasamalaysia.com/braised-pork-belly-dong-po-rou/2/

with the following adaptions:

780g whole piece pork belly

Verdict: too salty; I should have gone with my instinct to cut the amount of soy by half. Also be careful when reheating as the pork may get too chewy: cut the pork into chunks and reheat very slowly on a low heat. There are better pork belly recipes out there.