So now it's down to saving just 1.1 ounces (31.1 g) for two (32 spoke) wheels, and 3/4 of the nipples would still have the already mentioned potential headaches of aluminum nipples. Granted, the driveside nipples being brass would no doubt lessen the potential for problems. Still, no thanks. Either way, a drop of oil at each spoke/nipple junction at least once a year will help keep the nipples turning freely-