Im also in a dilemma, better compute how many sun coins you get doing all the events, convert it into adv refines and then it might be worth it

if the ninetails sun coins are fixed I will not freeze anymore, its true that I wont be getting enough adv refines but in return you will get heaps of coins for the ninetails, 3 daily myoboko gift, heaps of magatams from exam, more sun coins etc, since im lvl 94, Im on the 2nd highest sage bracket,