Minimum requirements for 6* Thrawn

Currently my PS are all level 70, gear 8 except Chopper at 7, uniques all 7 and other abilities 5/6.
Zeb is 7*, all other 6*

Can get rid of death troopers but then downhill from there.

Got reasonable mods on all of them.

Concerns are:
- Zeb's potency is 32% - does it need to be higher?
- Speed is: Z -151; H-120; E-155; K-95; C-163