Your head-mates have doubled, now giving you two personalities for each of the drawbacks you take. For Another Self and Another Ego, the extra personality is different from the first and you in the same fashion as the source drawback, leading to a rise in fights for control and arguments. For Another Person, the extra will have a random level of personality drift to them, anywhere between the levels of the other two drawbacks.
Another Pair
Gain: 10 SP (Another Self)
Gain: 15 SP (Another Ego)
Gain: 15 SP (Another Person)
Gain: 10 CP (Another Self)
Gain: 15 CP (Another Ego)
Gain: 15 CP (Another Person)
Required: Another Self,Another Ego,Another Person,