I AM the SEX, the MONEY and the POWER (DMSI v2.4)

[Shannon]

The masked is a lot lower volume of subliminal audio data than the US. It makes perfect sense that someone would respond better to one than the other, or even a mix of the two, depending on their personality. Chaos takes higher volumes as being told what to do, and resists. We established that a long time ago. So masked is going be taken more like being asked to do something, and that's a lot more likely to get results for him.

But Dzemoo takes volume increase as a source of motivation, and so lower volume is less effective and obvious for him.

Mystery solved.

Not sure if this was previously answered as well. Is this an introvert/extrovert situation? Or could it be?

Could be, but I am more inclined to believe it has to do with different personality aspects and basic fear levels.