I have a wavebox on the tank already. In fact, I had two until a couple weeks ago. Took one offline and sold it because the second one wasn't really adding a whole lot of dimension. I guess the aquascaping idea having islands with overhangs is the issue. Maybe more pumps in the flow shadow zones maybe is the answer I'm looking for. .. Darn.
... or maybe a tank re-aquascaping project in the near future. ...
