@blanchsb a wonderful video indeed! Thank you Shawn!
We should all do more videos like this…
I will try to make one when I get to this part… But, I think you are creating a lot of unnecessary geometry: when you’ve got this:

I mean this part:

simply Edge Slide:

and Join:

I know I will end up with a completely different topology and now I am extra stimulated to get to this part, because I would like to see how I am going to solve this;)