The wedge is not the problem. The problem is the concave area behind the wedge - it acts as a scoop, your scupper tube needs to be lengthened and the entire cavity should be filled and faired flush with the hull say 6" in front of the wedge and 6" behind the back edge of the recessed area. You might scrape the paint off the wedge but I would suggest you not be too hasty in removing it. Heres a picture of mine. scupper tube is behind the wedge maybe 1/4" or less centered behind the 3" wedge
