The previous iteration of the SOP hadn't been factoring in light overcharging (safe up to 5% of total capacity), and so Keiko and Akane could only safely support 4 and 5 clones per cast respectively.
In response to discussion about this on discord, I went and dug into the math in more detail and created a generalized formula for the maximum clones you can support with light overcharging, and yeah with that factored in (and thus the IC assumption that Keiko and Akane are meeting up with Noburi every day to get overcharged (which wouldn't be any more of a problem than usual for Keiko given that she was already assumed to be contacting him daily to recharge post-cast enough to support using YTJ for that day) it turns out that Keiko can do 5 clones in one cast and Akane can do 6, which means that they can level Resolve some more before having to push for SC 40.
I've added the results of my calculations to the SOP page, but I'll leave it ambiguous whether we go with or without overcharging until we hold a vote on it next cycle.
edit: after a little more discussion on discord, it turns out that with the koi apparently harvestable for the next six weeks until they start breeding, if we put all of Keiko and Akane's XP into Resolve (as opposed to getting a head-start on SC 40 to compensate for having to breed koi) then Keiko will be able to support 7 clones and Akane will be able to support 6. Chakra-wise, Keiko can only get 7 clones by using two casts, which will take about 200 CP worth of recharging from koi, while Akane can support 6 if she safely overcharges
or if she recasts, which would take about 150 CP of recarghing. I'm led to believe that we can sustain Keiko's recharge needs with 2 chakra harvests a day (they regen in 8-10 hours so this is definitely possible) but that we cannot sustain Akane's recharge needs at the same time.
This means that the way to maximize XP gains right here and now while the koi are active is to send all of Keiko and Akane's XP into Resolve and then start lightly overcharging Akane so she can do 6 clones and then also giving Keiko a recharge so she can do 2 casts for 7 clones total. Whether this is more optimal
overall is uncertain, because after six weeks the koi harvest will stop so they can breed and then Keiko will be limited to light overcharging again until SC 40, so I'll figure out the math on that and report back.
edit 2: Figured out the math for whether or not it's more optimal to put our current XP to higher Resolve to take advantage of the temporary koi refills. Note that this only affects Keiko, as Akane's current stored XP don't bring her to the point where she would need koi recharging. Also note that overcharging is assumed in this model.
There are two competing paths to compare here:
- 5-Keiko, who only levels to make use of overcharging and then pushes for SC 40, and then enough Resolve to handle 7 clones.
- 7-Keiko, who gets enough Resolve for 7 clones now to take advantage of the koi, and then pushes for SC 40 afterwards.
5-Keiko needs 123 more XP to get to SC 40, then 87 XP to get to 6-clone Resolve, then 96 XP to get to 7-clone Resolve. The first two segments (210 XP together) are done at 5 clones (x1.5) and the last segment (96 XP) is done at 6 clones (x1.6). Assuming flat 4 XP base (sloppy, I know, but good enough for our purposes), she finishes in (210/6) + (96/6.4) = 50 days.
7-Keiko needs 306 XP to hit SC 40 after dumping so much into Resolve, but the first 42 days of it are at 7 clones (x1.7 = 6.8) and the rest is at 5 clones (x1.5 = 6). 42 days of 6.8 XP is 285.6 XP, leaving 20.4 XP to be done at 5 clones, taking another (20.4/6) = 3.4 days for a total duration of 45.4 days.
Therefore, it is over half a week faster to take advantage of the koi while it's around than it is to have SC 40 earlier. The results here are somewhat sensitive to the base XP rate (in the sense that if the base XP rate was low enough, 5-Keiko would pull ahead because the advantage of 42 days of boost becomes negligible) but for the XP rates we're working with it should still be solidly in favor of 7-Keiko.
tl;dr it's optimal to dump all Keiko's XP into Resolve 33 and then give her daily recharges from the koi until they start breeding.