Ok so someone told me that's it's better to get all my tier 8 to level 2 first before I go switching them to tier 9. Is this person right ? Or is there a better method I could do. I still got dorms to open as I'm only 40/50 dorms. And 38 of them are t8 whereas the other 2 are t9.
Yeah that's what I thought cause when I upgraded t8 to lvl 2 I didn't even see a change :/ But I didn't know if it would be more effective in the long run