Hey NS!
I recently sat down with Blister Gear Review and recorded a podcast about the plastics we use in ski boots and how this relates to your skiing experience. This is actually part 1 of 2 (it was too long to release as one podcast) and we'll drop the second half next week, which will deal more specifically with topics of flex & damping.
So, if you feel like getting nerdy about ski boots check it out!
https://blisterreview.com/gear-101/a-very-deep-dive-on-ski-boots-part-1-plastics-ep-54