I have a smaller centurion-similar hull...
Good news: you can get a better goofy wake than that.
Bad news: it's going to take some trial and error.
My boat has no blade, I've ridden behind one that does-ditch the Wakezup.
For a nice big clean face we run 400lb in the rear locker, 150 under stbd pass seat, 150 on stb pass seat (if we are short on flesh sacs), 150 up front, center stock 250 full, all passengers on the stbd side and when the water cops aren't about and adult on the stbd sunpad/locker cover.
Beg/borrow a GPS and calibrate your perfect pass per the manual. I run 10-10.3mph, you may need a little more speed given your longer boat.
Below pic was taken without the weight up front and without the extra fatbrick-so 300lb short of the above set-up.