@asolo, I continue to be concerned about the 90-ish degree angle between your skis and your lower legs, visible in the frames below. You say you are pressing your shins into the tongues. It does not look like your shins are against the boot tongues, to be honest. So I'm wondering if equipment may be at fault for that 90 degrees, or if it's an issue with body mechanics.
1. What boots are you in? What's the flex? Can you photograph one boot sitting on a table, from the side, buckles buckled, with the camera at the level of the boot (not above it), so we can see its forward lean? If you are indeed keeping your shins in contact with your boot tongues, your shins should tilt forward pretty much the same amount as the spine of the boot.
2. Have you had any custom work done on the boot boards inside your boots?
--Do you have a heel lift inside the boots?
--Are you using a spoiler?
--Has any custom work been done on the soles of your boots?
3. Did you buy boots from a ski shop with a real bootfitter checking your foot anatomy before suggesting a boot? In other words, did a bootfitter figure out your range-of-motion for dorsiflexion and deal with it as you got fitted?
4. Has there been any alteration done on the binding delta? In other words, have shims been installed under your bindings' toe pieces to lift them, or under your heel pieces to lift them?
5. What do you do to maintain shin-tongue contact? Can you be specific about what you do with different body parts to maintain that contact?
6. Do you try to "stand" on the balls of your feet? Are you ever aware of your heels lifting a bit inside the boots as you ski?
7. Do you ever feel your shins pressing into the cuffs harder as the forces max out in a turn, maybe even hard enough to flex the boots? If yes, do you know what makes this extra pressure happen? Do you consider it a good thing or not?