Interesting read. I also have the Bell Super 2 MIPS version, and also found the non MIPS version wasn't as comfortable. (I too am rather sceptical when it comes to MIPS, but comfort won out over marketing here)
It's so easy to switch between full face and open, even when wearing the helmet as well.
As an aggressive trail helmet it's great to have the added security of the chin guard, (my LBS calls it the Jawbone) but I still have a DH lid for proper DH runs