Increasing the utilization rate of the Heaven and Earth Primordial Qi within the Source Crystal Jades, and avoiding waste as much as possible, did indeed speed up his Cultivation Progress somewhat.
But Chen Cheng had only ever gotten his hands on five Source Crystal Jades. Over the past few months of Cultivation, he often went without using them, and they were still not enough.
After this Cultivation session of the Primordial Pill Marrow Cleansing Method, he didn't have a single Source Crystal Jade left.
This was a classic case of the saying "poverty for scholars, wealth for warriors." Chen Cheng was still dirt poor!
Of course, if anyone else found out he was using a top-tier Heaven and Earth Spiritual Object like Source Crystal Jade to cultivate the Primordial Pill Marrow Cleansing Method—and had even begun researching how to improve its utilization rate—they would probably curse him through gritted teeth, "What a damn spendthrift!"
