Thread:Blaid/@comment-2089817-20121209233629/@comment-3001427-20121212000739

The whole idea that a soul is like a nuclear reactor was founded in Supernatural via Castiel. But in the world of Bleach it operates VERY differently due to the significane of spiritual power and the various levels it has. The stronger an individual will and resolve is the greater the spiritual power. Captains being those of the highest echelon who possess these monstrous powers.

And we're still not sure how the Hogyoku was forged, what your saying is supposition. The missing souls in the TBTP arc was due to Aizen's experiments in Hollowification, not the creation of the Hogyoku.

Besides even IF a single soul had the power of a nuclear reactor, what does that mean for a Captain who are magnitudes of order higher in both density and concentration of spiritual energy? Compared to a human soul (which Yammy was able to consume through his ) they might as well be and Ill be quoting my own character, "a flickering candle" with Captains being, "the burning glory of the sun." Yet for Yammy those humans were nothing more than a mid-afternoon snack who tasted horrible, of which Ulquiorra commented that it was due to them being so weak.

And Yammy in his base form was the weakest Espada, since they are ranked according the reiatsu they possess in their base form. Assuming you accounted for that, my argument STILL stands that using the Espada and Captains is in the end a far more lucrative prospect than the 100,000 souls.