looking for roll bar application question

inkjunkie said
I bought 120' of tubing for mine. Snout bars, a pillar, front hoop, dash (under it) tube, with an x- brace. Think Jim had 4' left over. Jim has been building a-body cages for decades now.

I seem to remember some one telling me one of the problems with a cm cage is that over time it gets stress hardened and gets brittle.....though I seen it somewhere in a rule book...Might have been a score rule book....Hmmmmmm.....

I have heard something about that but idk how much of a factor it is when you consider a car may race for years with an 8.50 cert cage then later in life say they want to update to a faster cert they typically just build off of the existing cage, I would think if the stress and fatigue were truly a problem they would remove the old bars. Not saying anybody is right or wrong, just a thought.