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?).