Bryan - I have played with the wake a bunch.. more times then I'd like to count.
In order to get the wake on par with some of the other wake machines its best to do the full stock ballast, the extra sacs in the back, the extra sac under the bow seating, and a bow sac in the walkway - (like a 500lber) The walkway sac really helps to get the wake nice and crisp, and a little longer.
As far as line length, I usually ride around 70-72 on this setup, only because thats where the money spot is. Let me know how it works out. Might try speeding up 1-2 mphs if your having an issue with clearing the wake at that spot.