Still figuring out myself about these personality arrows.
Decided to copy the initially created world where my kobolth is because I prefer to have access to both adventurers in the same world setting/seed. Spawned as an outsider called Dhorna, (my drogoth lass re-invented) at the place my kobolth Drog started at which was near the same dwarven hillock. Then stole a silver greatsword and a silver whip from the same dwarven fortress but sadly no backpack, had to make one from goats and while at it made some mastercraft bone gear just incase but all she's wearing now is as follows: Artifact bone helm with five spike horns (accidently added too much due to results incorrectly saying I didn't do anything), Mastercraft bone amulet, two Mastercraft bone bracelets, mastercraft waterskin along with exceptional backpack from those goats and adorned the artifact
sliver adamantine greatsword with citrine bands and artifact
sliver platinum whip with some high quality morion spikes. Everything else is in the backpack.
So I went to that human bandit camp again (found some empty lair on the way this time), talked with the commander there for a bit and then bolted towards the Gakit's place to the west to test my drogoth's thoughness. I was satisfied to find out that Gakit's attacks just glanced away and the only way the bastard could do any damage to my nudist was when he grabbed her and threw her like 6-10 squares away, smashing the skin on the ground but the damage levels were still in the brown which seems to indicate that they'll heal, and fast they'll heal on a drogoth. Took but a few moments to crack and bash and smash it's skull into it's brain and kill it.

Good thing I saved the game before as I wanna kill the demon again and this time with triple the amount of toughness added as I do not want any smashed skin.
Point is, now I've compared between a character who has a really hard time killing a demon and a character who has quite an easy time killing a demon. Fact is I honestly prefer the latter. When I want my character to hit something he/she better hit it and not miss, I'm surprised I didn't break something in real life when dealing with that demon the first time. Usually when games get too nerve-racking for too long that's when I'm about to blow a proverbial 9000+ megaton nuclear explosive with my rage and it's not even funny nor is it good for my brain cells.
EDIT: _STRAIN_AT_YIELDs at 0 on body materials results in dented non-healing parts. So I did the opposite of it and noticed that the demon didn't throw her anymore but instead tried to strangle her and in one testing instance killed her by strangling. I just wanna cut that bastards legs off while it's still alive and then hack it's head off.