At some future point, I'll dispense with the whole upper section of the cage (except the roll hoop) & add structure
from the door top down.
There have been a few debates on cages in street cars.
FYI.
I was running a skid pad with the big stickies. After 2-3 laps
the tires warmed up and it really hooked up. I hit an undulating spot in the pavement and my haid bounced off the upper side bar. Ever with a helmet and cage padding, it knocked me goofy....(goofier?)
Hurt, too. Without the helmet I'da been in trouble.
Live & learn.