Is it just me or are Marauders really hard to train?

I do DU -> backspin because it's the only way to keep the houses stunned. Other classes are slowed down at gobis because the houses invincible up after 1 or 2 hits.

Overlooked that. :/

Obviously stun mastery would help bust the houses then? If i ever got to 3rd job i was thinking a goby/typhon build that ignored stun mastery for a while, where blast would easily be the most damaging choice here. o.o