"Intuitively and theoretically, all portions of each limb should do the proper amount of work, according to the front width profile and the side thickness profile."
I agree. And at least as importantly, within that 'proper amount' of work is also the understanding that the limbs should work in harmony when drawn by the archer so that one doesn't overpower the other... because when one limb does, that's when shooting characteristics take a down turn.
Side profiles don't determine limb harmony. We could easily make a reflexed limb act weaker than, and lag behind the limb with deflex. The key is to balance their actual effects on the arrow as much as possible, regardless of what they look like.
In my mind, the ultimate gauge of the limbs' strengths should not be how they appear at brace, or unbraced, but should be the effects of their combined dynamic action... whether their strengths work in harmony in the archer's hands, or one overpowers the other, and if so, to what degree. We won't know this, judge this, predict this, or impart dynamic balance, especially on a bow such as this, with arbitrary brace height tiller measurements as our beacon or gauge, except by outhouse luck.
Assuming a bow like this can't be forced to make the limbs look/seem identical... I'd be interested to hear how others would work it to ensure those limbs were harmonized in the archer's hands when drawn. I'm not saying my way is best, it's probably not, so if there's a different, easier, or more straightforward way than what I'm doing, I'd like to know too.