can you tell me which way gives me more power and more ini in refining system

1- getting an equip in pos 1 ninja from lvl 6 refine to lvl 10 refine in same time ( how many blue and adv refine i will need for this )

2- getting all equip in pos 1 ninja from lvl 6 to 7 then 8 and so on

3- or there is a better way to boost my power with refining system ( what is that way )