I like Power Pro!
The key to keeping the line from digging into the spool it to really pack it on during intial spooling.
This requires tightening down your drag and spooling the line on under tension, I like to use a damp dish towel and pinch the line inbetween it with my thumb and index finger... it should take effort to crank the handle to spool the line!
Since you're using a fluro leader I'm guessing you don't have your drag set very tight, which will make the line "loose" on the top of the spool.
You can solve this by making a long cast and tightening your drag down to put tension on the spool again, or drag the line behind your boat letting out line until you hit the "hard spooled" line... then reel it back in under tension.