Don't the animations show him flying with his boomerangs in hand and on his feet? I remember the fron of the box shows him riding a whirlwind while carrying the boomerangs. If the animations do too, it might mean that the boomerangs aren't strictly necessary for 'tornado riding', and instead just speed him up while doing so. If that is the case, wouldn't them being put on his feet be kind of redundant? to me, in the animations and comics it seems as though when they get their golden masks they learn how to use their weapons for something other than surf boards, skis etc