@ilivetoski I've been working on the same problem but at 34mph. I've now managed to run 32 a couple of times and often get to 4. Running the #1 ball well makes a huge difference. All I focus on is getting wider and earlier.
I think the key to avoiding slack is the direction you are heading when you start the turn. If it's straight at the buoy, then there will be slack. If you are heading outbound and start the turn, then there won't be slack.
To me, staying connected is one way to ensure that you keep the outbound direction. Casting the ski out is another way to achieve the same thing.
If I'm skiing well, I can go fast through the gate, get wide of the 1-3-5 line and finish my turn at the 1 ball. Doing the same thing at the 2 ball is harder (LFF).