Except for the little fact that in 'Push the limit', performing the second action is part of the first sentece, the prerequisite.
So we're back to the first sentence is the only mandatory one? I thought that bit of creative invention was abandoned four pages ago. There's absolutely nothing in any rule or example that suggests that the first sentence of an ability should be treated differently than any other.
Ah well. This is pretty clearly into the land of "Going to read it how I want it to play until FFG says something" so might as well move along.