[zork]

Well I have a unit variable in my layout. Once I spawn a unit I save it in that so each "self" is accessible later if needed. (Which I don't atm.)

local unit = {}

--spawn player
--spawn playerAltPower
unit.player = self


-spawn pet
...
spawn pet altPower
petAltPower:SetAllPoints(unit.player.altPowerBar)

sth alike.