occasionally I've weighed some racing flats to see if they are close to manufacturer claims and often find the left vs right different by a few grams which is no big deal, probably a little extra foam on one or another
but recently discovered one new pair of adios that are nearly half an ounce apart (14 grams)
that's the weight of a racing insole, where is all that extra weight hiding?
doubt my legs care until maybe marathon distances but how common is this?
have you seen more extreme cases?