Hey
couldn't naruto test the effects of sage chakra on different chakra absorbers for example to prepare for fighting akatsuki (he may not know of kisames death/defeat)
for example shino could let a few bugs try to absorb sage chakra if one survives maybe the next generation of bugs could handle sage chakra better .. that way one could learn how long it takes absorbers to handle natural energy
couldn't naruto test the effects of sage chakra on different chakra absorbers for example to prepare for fighting akatsuki (he may not know of kisames death/defeat)
for example shino could let a few bugs try to absorb sage chakra if one survives maybe the next generation of bugs could handle sage chakra better .. that way one could learn how long it takes absorbers to handle natural energy