3.Smash is instand kb does not work. End.
4.No bubble absorbs 7k.
3. But it's easy as hell to anticipate a Smash. If it's done at the same moment as Smash is initiated, the target will be knocked back and the Smash will execute when the target lands. Annoying as **** when it happens.
4. It is totally feasible for the bubble to absorb a Smash completely if specced correctly (and if it's the first attack to damage the bubble).