Summon Beast and Savage Beast

Shaka Sag

How would these spells work together?
beasts and greater beasts have pretty low will saves.
Seems like the second any summoned animal (even the big uns) is attacked it will flee (high damage and low will saves)

Can Savage Beast help with this? How would it work?

Between the xp cost and the instaflee, animal summoning seems pretty combat useless.
Sorry forgot to mention problem seems even worse with summon swarm. Swarms provoke an AOO when they attack. Seems like they'd flee before even getting an attack off.

(I'm not negative on the game btw. the scholar class has the flavor I always wanted in a magic system)