I understand....but the big difference is you obviously build cars destined for the track. While I supply a lot of front ends for drag racers, other than the restoration of The California Flash, all my personal and shop builds are 100% street cars. I like to tie the front / rear together and add necessary strength wherever it makes functional sense, but stay away from rollbars and rollcages. I do not want to drive around with a helmet on, it is not good for my hair. Last thing I want to do is have a street car with the weight of a tank.
Incorporating a high $$$ fuel cell along with all the other safety requirements of a competitive race car is just not my cup of tea, however I enjoy watching innovative builders like you that take up that challenge.
Hope all is well and have a happy 4th.
Denny