This is probably in the right place. Someone feel free to move it if it's not.
So recently in the Bad Set Design Choices topic, there's been a bit of a discussion about how Vahki waists would have made for a better Bionicle 2015 torso. @Hawkflight had the idea that maybe by attaching one of those to the back of a slightly remolded gearbox, one could get the shoulders and hips in line with each other and get a better-looking torso.
Well me being the relatively unskilled yet enthusiastic person that I am, I decided to throw something together in LDD to try and see if it would work. So without further ado...
(Anything not colored in red is the same between both creations, anything in red is something I've changed [i.e. Vahki waist vs. HF torso].)
The dimensions of my "custom" gearbox are exactly the same as the real thing, disregarding the neck-area slope - sadly, LDD doesn't seem to actually have this piece yet.
As we can see on the left, the hips are now in line with the shoulders without sacrificing any of the original dimensions or functionality.
And now if the gearbox piece is remolded slightly (remolded parts represented in green)...
We can attach heads and torso armor exactly the same way as is done with the actual torso!
Now, I don't know about anyone else but I think this looks a lot better in terms of actual proportion and appearance - plus, no exposed balljoints! I guess the parts count would be a little higher if this was implemented, but only by about 5, at the most. Not saying this is what Lego should have done, but I guess it would've been nice to see it happen anyway.