>>384903060
i pretty much made the twist bone-saving feature for MMD models specifically, so yes
they're pretty good and make a notable difference.
obvious disclaimer that you should only use "Fix Model" on MMD models and all that, don't use it on booths or most other gamerips. works pretty nicely on XPS/XNALara models though
i will say that i don't trust any of feilen's work, that includes CATS bake and the automatic twist bone feature. just don't use those please. making twist bones manually is the easiest thing ever as long as you're on Blender 2.79, 2.93 or 3.1.