I wanted to say a big thank you to Ragboy for his recommendations in getting our surf wake this dialed in. We primarily ride regular thus we are mainly focused on the port side. We have the pro-ballast setup and we swapped out the rear port bag for a custom Z3 ballast that holds just over 1300 lbs. With the port side front ballast full and port side rear ballast full, I will then fill the starboard front ballast to 75% and keep the rear stock ballast at around 50%. The weight or ballast percentage that you run on the starboard side is directly proportionate to where people are sitting and getting the boat to list to around 8%. I typically run taps at 3 and pull a little slower than 11mph but the speed depends quite a bit on the board you are riding and the weight of the rider. With this setup the wave has good push and there is about an 8-10' sweet spot.
Here is a picture of what the wave looks like with 3 people on the boat. Keep in mind the water was a bit choppy that day so the wave isn't quite a smooth as it normally is. For those of you with a Z3, I hope this post helps in your quest for the ultimate surf wave.