Thread:Chikalin/@comment-24526600-20140820223248/@comment-24366645-20140822224703

It really depends on what you are working with, I'm guessing you are non-IAP? If you are, limit your chip usage to: scratches when 5★ unit rates are at 2x, box expansions, and friend list expansion (only if urgently needed). You shouldn't be using your chips for stamina refreshes, floor redos, and revivals at Rank 40~ at all.

Premium support is a different story. I think that non-IAP shouldn't waste their chips on it, it's not hard to max out a unit, but it's entirely up to you.