It’s not to early to consider how people are going to be able to get in and out of the Feel Three. If the top is mostly open and there isn’t a board across the seat for a wheel it should be easy enough to set the rotation that you can set inside and then slowly rotate the chair back as you sit in it. I guess it depends on how much movement people will want and how many panels they will end up buying that dictates how they get in and out.

I added a couple of half hexes to give more leg room at the front, obviously the edges pointing up are a problem :p