Yea, the 6 million dollar man!

I think powerfishing means that after you've worked your bait through the highest percentage zone, like shoreline or structure, you burn the bait back to the boat as fast as you can so you can cast right away to the next spot you think is likely to hold a fish, which is also far enough from the preceding cast to avoid territorial overlap. You don't waste any time fishing the perceived lower percentage areas, namely the water closer to your boat and the water near your prior cast. And you don't waste time between casts.