Tobe clear, I never said it's a bad feature. It's just too hard right now. Is it bad? No. If it was too easy it will break everything anyway. That's just, it give that kind of fealling "hey a new super awesome feature right now, but you must wait months before you can try it cause you don't have enough stuff". It's like finding christmas present in summer but waiting christmas before using it. It's frustrating. Necessary for the good health of the game but still frustrating.
And when I say, it not worth it, I mean it not worth it to jump right now on the firsts new rainbows and burn all your FG to experiment it since you may take a long time before you can do this with another girl. In other words, be patient and wait for your true waifu, dont go on the first free 6*.

Free stuff is free, new stuff is new, DMM is always better than everything.

Also, saltickets and 5*6*saltickets don't give you Rainbow Shard.

Back to regular salt, 100 D-medal 5*6*salticket give me salt once again:

Okay, just half salt since I like her and I wanted her on DMM even if I will certainly not use her. But she is cute and funny.