Welcome to BOS.
My $.02...
I think your going to have a big challenge free skiing at 32,-32 and then trying to replicate a gate pullout in the course at 28mph (-15?) The speed of the glide, the height you need to get on the boat are all significantly different between those two speeds and rope lengths. For example, if your goal is to get to the width of the 2/4/6 buoys, the angle you need your rope to be at on the boat is going to vary pretty significantly from your free skiing setup to your course setup. I recommend you use free skiing to work on body position for things like pulling across the wake and just be conscious of using every pass in the course a chance to work on the gate timing. Feel free to post video as well.