I need some advice from other Cajun owners here..

The boat currently has a 19 pitch, 3 blade aluminum prop..

I'm still breaking in a new powerhead, but some short bursts to near WOT, only got me to about 50 mph on the gps..

I haven't pushed it all the way to WOT yet....maybe next outing...

I have received conflicting info on what size/pitch prop I need..

The dealer says I need a 20-21 pitch Renegade or Raker..

Friends (boating enthusiasts) say I need a 23 pitch prop..

I don't want to spend $400 on a prop and it not be what I need..

I'd like to get the right prop the first time..

What I use the boat for is dragging the kids around on the tube, myself on the kneeboard, general cruising and fishing..

I don't need a "MONSTER HOLESHOT" or anything extreme, just a good "all around" prop that will let me open it up to 60 mph or so for fun runs across the lake...

Prop advice??

Recommendations?