Madara even needed zetsu material so he can be compatible with it and didnt activate till death even for sasuke his rinnegan activated pretty easy.
I think something that could of contributed is that toneri didnt have too much diluted human blood in him probably making it easier. And I guess for madara it goes to show how much indra and ashura chakra dont want to mix together but hagoromo gave already mixed yin rikudo chakra.
Which makes me wonder what type of chakra is transmigrant chakra if it isnt rikudo chakra. Or is it transmigrants dont have access to thers dormant rikudo chakra until both halves combine and making it that persons chakra.
I think something that could of contributed is that toneri didnt have too much diluted human blood in him probably making it easier. And I guess for madara it goes to show how much indra and ashura chakra dont want to mix together but hagoromo gave already mixed yin rikudo chakra.
Which makes me wonder what type of chakra is transmigrant chakra if it isnt rikudo chakra. Or is it transmigrants dont have access to thers dormant rikudo chakra until both halves combine and making it that persons chakra.