Nice, I'll try that. Maybe I'll hold it off for now until I get more Calliopes to CR and have a spare one.
On another note, got Olivie's skill to 5/5 with one rainbow. That luck. Looks like I didn't need the other one. I decided to save it instead of giving it to Spica for now.
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Went all out today in farming for DCs at DMM. That increased DC drop rate really helped me go from 30 something to above 500. Time ta save for Spica, Chydis, and the plat princess, unless there's any other good ones.