Originally posted by: AssertnFailure
too much stress on your body? if your body IS a spring, then what would the problem of that be? Granted springs probably dont have the same level of elastic power that rubber would, but this IS an anime. If luffy can deflect bullets, then bellamy should at least be able to deflect rubber. I could see bellamy bouncing off of luffy into the middle of the ocean though. Quick wrap-up and plausible if the direction luffy ends up bouncing is towards solid land (perhaps back near his ship?).
my point is any part of the body not turned into a spring can be damaged normally. As a result even if one turned there arms and legs into springs to absorb a blow there shoulders would still have to deal with the force of the blow. Basically the same way that if crocodile can't become sand or Smoker can't become some they would take the normal damage of any hit. Basically unless Belemy turns everything that luffy hits into a spring he will still recieve damage. While in Luffy's case his ability is basically inate like the smooth smooth fruit ability these are always active and require nothing to actualy activate them.