All my doubts fell away when Galton found me in Hope's Edge. He was intelligent -- eloquent, even -- and had complete control over his raider band that he'd found. The signs of derangement were there, but subtle; he believed himself a God, a megalomaniac urge that was the flaw in his creation, and he succumbed swiftly to the natural raider urge to contaminate others. Unfortunately we do not have sufficient data to determine how much of this was due to his personal issues and how much due to the effects of BBD -- but it's clear that we were nearly successful. Continued research and adjustments to the formula should hopefully clear up this problem.
The question that has not been asked is how this works. I have some theories. As I observed in my previous post, the nascent hive-mind that can be activated in a raider by a 'raider king' is clearly the sign of a new entity's evolution. Why was Galton able to retain his personality and thoughts with only minor deviance while still acquiring raider adaptations and the connection to their hive-mind?
One must first ask where our consciousness lies. The brain is clearly the source of consciousness -- physical damage can alter it, and yet even if it were completely destroyed, the Gravemind can rebuild it with only minor deviance in most cases. This leads me to suspect that our consciousness is, in part, disembodied -- what the religious might call a 'soul', perhaps -- and exists partly within the hive-mind of the Gravemind. As we have seen with the Shard, and possibly the Blue Man (insufficient data regarding this entity is available), a single powerful personality can rise to the surface of the hive mind and express itself individually, if still influenced by the madness below the surface. As the first personality placed within the 'raider mind' with modifications to keep him from being completely subsumed by madness, Galton naturally became - to this 'raider mind' - a similar presence as the Shard.
If my theories