Redistribution with Slake the Thirst

Hello,

A blood brother (for example Agi) playing redistribution gains 1 Blood and I move from another vampire 3 blood to Agi.

Name: Redistribution
[LoB:C]
Cardtype: Action
Discipline: Sanguinus
+1 stealth action.
[san] This acting vampire gains a blood. Then move any amount of blood and equipment among the Blood Brothers in this circle.
[SAN] As above, and unlock this acting vampire.

If Agi plays Slake the thirst at superior, how many blood gains a second Blood Brother? 1 or 4?

Name: Slake the Thirst
[HttB:C]
Cardtype: Action Modifier/Combat
Discipline: Sanguinus
[san] [COMBAT] Only usable when this vampire gains blood. Choose another ready Blood Brother of the same circle. That vampire gains the same amount of blood from the bank.
[SAN] [ACTION MODIFIER] As above, but usable as an action modifier.

Pretty sure its only 1 blood, since only one blood is "gained" from redistribution, the rest is just moved around. But I'm not the authority here.

You can even use it with Coagulated Entity to give someone the amount of blood you moved from other vampires to the acting one (assuming it ever goes unblocked)

Huh. Did not realize it also counted transferred blood (separately). Good to know, opens up some fun options I did not realize existed