Okay, here me out.
When Tsunade was fight Kabuto, Kabuto mentioned that her boobs were go big that the chakra Scalpel count penetrate the heart, so we know that the Hyuuga technique works by poking the chakra points with basically mini chakra scalpel, but not as complex as the scalpel....so logically wouldn't the same thing apply to 64 palms, and would choji be too fat the penetrate.
When Tsunade was fight Kabuto, Kabuto mentioned that her boobs were go big that the chakra Scalpel count penetrate the heart, so we know that the Hyuuga technique works by poking the chakra points with basically mini chakra scalpel, but not as complex as the scalpel....so logically wouldn't the same thing apply to 64 palms, and would choji be too fat the penetrate.