No getting around it. Nobody’s perfect. Not even machines.
Mistakes happen at a snowboard factory. Raw materials are sometimes flawed and factory staff are humans who occasionally make mistakes. Either way, a small percentage of snowboards come out wonky at various points in the production process.
Quality control inspections after every production step help weed out the bad apples throughout manufacturing, but a few boards are inevitably found to have a cosmetic or structural flaw at the last round of inspections before final packaging.
If it’s only a cosmetic flaw, the board gets labelled as a ‘Blem’. Blem boards offer the same performance as a first quality board, so they leave the factory with a full warranty, but they are sold at a discount because of the cosmetic blemish.
If a board is found to have a structural flaw, like too much nose rocker or a bad insert, the bad board gets marked as a ‘third’. Thirds don’t usually leave the factory. There are never that many thirds, so most get chopped in half and thrown away, chalked up as unavoidable waste of the production cycle.