some updates, no luck myself.
I got 779 to clear (dev build) however it appeared to have no effect as well.
I don't know enough to confirm it actually turned off besides comparing the saves again afterwards. (and also obviously loading up the game and checking, I check chibi/battle model/trainer card)
I tried this with SYS_NO_CAP_MODEL checked under system flags. I might have misunderstood, but I believe that tab to be working as intended in the dev build, I will still try it the other way.
I'm fairly certain this would be much easier to do with editing the files/models instead, however I guess I'm being stubborn and I believe that if a flag can put it on a flag can take it off, you know?
If this is completely misguided please let me know. I'll continue trying combinations and other things, as well as learning about how it works in other "similar" games maybe hoping to find an idea.
just wanted to update for anyone checking in on it
IMPORTANT EDIT (leaving rest for posterity)
For WHATEVER reason, reloading it in pkhex, I was doing some other adjusting and the ONLY thing I did was add a pokemon that didn't exist (specifically I was making a bellosom for someone), I saved it (essentially saving it twice overall) and this time ...
It appears to still be a bit finnicky with actually setting the sys flags.
Current >no cap enabled
> 779 disabled. (in the flag research save comparison it says 0779 I don't know if that matters or not but there's that info too)
>pkhex dev build (posted approx 5 hours ago as of this edit)
> my fashion set to screenshot (body type 8), every day F (seems to only work with this one. All the other models' hats are attached, I think ) @Kaphotics when you have a moment would you please try replicating this? (Or anyone else I just know you know what you're doing lol)