What makes a net shot classified as a "tumbling" net shot? Is it related to the distance which it is played from the net? so if played from very close then it's tumbling? (And woudl that be close to the net, or close to the net tape, or both?) Or does it also mean one that is done not just close to the net but with putting spin on the shuttle? If a net shot is played from only a little bit below the net tape, but without spin, and the shuttle tumbles over the net tape, is it termed a tumbling net shot? how about if it clears the net tape but very tightly, is that tumbling? or is a tumbling net shot where it's not just tight but the player has jabbed at it?