T'was only distribute & fire all phasers. Whenever I was hitting spacebar, I had to refrain from clicking on any of my captain or boff powers with the mouse pointer, or else they would not activate. Sorry if I was unclear, no boff powers or what not were attached to the bind. I just entered the string of info from BigRedJedi's thread into the chatbox to bind those two powers to the spacebar.
So, I basically had to pause firing while activating powers. With my mostly cannon builds though, I could usually just do it in between the gap in firing cycles.