I don't have mine, and honestly don't see a reason to burn one on him.
His leader is REALLY good, but the zeta is pretty mediocre and needs a squad built around it. Your squad is not that squad at all. Kenobi doesn't debuff, R2's burn, Thrawn's Ability Block & Fracture, and Han's Shoot 1st are all unresistable. The only things that apply resistable debuffs is Luke's basic & special(2 each, which is actually pretty solid), r2's basic, and Han's Deadeye. Those 3 are also the only ones who will get 5% TM per resisted effect.
Thrawn's Ebb and Flow is a much better zeta IMO.