Aluminums break, period
When I upgrade from my stockers, I'm intending to go Comp Pro Magnum Steels, for less $$$ than a LOT of aluminums, and never worry about them.
I have a used set of the Comp pro magnums I will sell you. One season old.
I broke exhg, rocker on #6. It was replaced under warranty.
I would say they are an ok deal if you get a set without any casting flaws. The rocker that broke had an air bubble in the bottom below the trunnion.
I will not run them anymore.
Hard to know if the flaw was the only cause. Just got me concerned about a cast rocker. And I never liked how thin they were under the trunnion.
Look at it this way, they are tested & all passed except one. 7700 rpm for five laps. They lasted for 80 gallons of gas & 70 gallons of methanol.
Make ya a hell of a deal.