Hi @RobHazelwood no worries, I always appreciate a good slalom technique discussion...
I'm not sure if this is just a difference in perception/feel or poor communication on my part, but when I watch you ski I see you doing exactly what I described. You get into your glide and I don't see you moving into the turn until your speed has dropped below the speed of the boat.
I learned how to ski (well) later in life, so I have had to really think through the mechanics of how a skier swings in relation to the boat. I was lucky enough to spend a number of those years skiing with and learning from Mapple. One thing he always reiterated to me was that he didn't need a ton of width on his gate, he just needed a tight line. For the past 10 years or so I've been experimenting with gates along with Caldwell (me a righty, him a lefty), and while there are differences, one thing is for certain...if you're too free from the boat when you turn in, you're going to take a path through the wakes that separates you from the handle too soon at best, or the worst is you'll turn without a tight line, fall to the tail, and be completely out of position cutting to the wakes.
I would agree that you CAN turn in right as your speed matches the boat, but timing that at every site, with every boat, with every wind condition is really tricky. You need a margin for error. The safer bet is to give yourself a window where you're moving slower than the boat, but haven't dropped back all the way to the whitewash to use as a turn in point.
I would also say that getting a ton of ski angle before you load the rope is the wrong approach. We want to load the rope by moving toward the wakes with the upper body, then let the ski build angle as it accelerates your mass to center. Again to my eyes this is what I see you doing, but it could be the difference of perception we both have.
Lefty Caldwell for reference: