Autism time. TL;DR last line of the post.
I've been looking at the rates in fuyuki, and I think X-G is finally the place to be.
X-C has long been the boan zoan. The best drop rate, the optimal use of your ap, but low ap cost per node making for a really not fun gameplay experience spamming the same braindead quest 72 times a day.
Automata removed the shittiest aspect, but it still requires setting your phone down for an hour to do it.
Now with drop rate CEs coming into the mix, you have to choose between a bone CE and a bond CE, and things turn to shit.
The breakdown:
X-C with 2x portrait, 3 more CEs for 20% bond, and 1 MLB drop CE is
>35.5 bond per AP - 10224 bond per day
>14.95 AP per drop - 19.26 bones per day
X-C with 1 portrait 3 CEs and 2 MLB drop CEs is
>23 bond per AP - 6624 bond per day
>12.46 AP per drop - 23.11 bones per day
The difference between portrait and bone is 3600 bond per day
For reference the difference between 0CEing oxford and 6CEing oxford is 5155 bond per day
continuing
X-G with lunchtime, portrait, 2 other CEs, and 2 bone CEs is
>36.5 bond per AP - 10521 bond per day
>14.18 AP per drop - 20.3 bones per day
X-G with teatime lunchtime portrait +1 and 1 bone CE is
>40.7 bond per AP - 11716 bond per day
>17.02 AP per drop - 16.92 bones per day
Full drop X-C is 14% more bones at the cost of 38% bond compared to full drop X-G
Full bond X-G is 11% more bond at the cost of 17% less bones compared to full drop X-G
And Full Bond X-C is worse drop and bond than full drop X-G.
When bonefarming, the best use of your AP is now X-G with 2 MLB bone CEs. The only reason to run X-C anymore is if you're speedrunning.