How come in all of this no one has mentioned safety as a factor for adding windshield bracing? The way SCCA cages are constructed, there is no true "halo" bar that is tied in behind the driver that encircles the entire head area. Instead it's a single tube cross-brace that is out there all on it's own and unsupported, leaving your life accountable to 2 welds on either end in the event of impacting a wall or another car with your roof. I added more of a NASCAR style downbar in the center as well as some corner bracing and gussets, as well as an extra roof bar from the center of the crossbar rearward. In-experienced drivers and safety workers as well as tracks that might have something to be desired for safety should make us all think about safety first, then the benefits of performance second. You can't race from the hospital bed.