Man shut yo ***** ass up. He punched Madara body and it went through TSB. If Gai would have punched TSB he would have lost his damn arm.You must be registered for see images
It's broken through obviously, anyone with eyes could see that
Guy's punches would wreck Ten Tails and The beast isn't fast enough to retalliate much less react to Guy's assualt
V1 Juubi is easily bigger than PS Shinsuusenju etc. Gai has no large scale attacks. Further move the juubi can regenerate and throw off it's limbs plus it can't die. Gai has absolutely no chance in hell of even coming close to stopping the Juubi.
Madara didn't even lose half of his body after being hit with Gai strongest tech. The Juubi would probably have a small creator in it's body like how it did the God Tree. Juubi slaughters that clown.