Yea, it'll have to be through the stun boosters. If they can't do it, no one can.

The fun question is, any particular reason why water Freya's buff raises that soft cap by the amounts it does (+250k/+400k)? I'm curious about what it takes to hit that area of 'another 250k isn't enough! But 400k is more than enough room!'. Nevermind what it takes to ram into the 1.4 million soft cap :P