Broken rocker arms two weekends in a row

Les Gibson said
Asking if anyone might have any thoughts on what might be causing this.
For consecutive weeks I've broken an exhaust rocker arm. Last week #4 exhaust rocker broke. This past Friday night #5 exhaust rocker broke. These are Harland Sharp rockers installed on Mopar Performance aluminum W5 heads. There's no oiling issue or clearance issues. I am told by the previous owner of my Arrow that these rockers are about 6 years old. Is this a case that they're just wore out and I need a new set or is there another reason. Appreciate any constructive thoughts.

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Valve interference? Boroscope the piston.

A body said
You talk about rocker arm life, but then I wonder how many dyno sessions or laps my Jessel rocker arms made in their life prior to me only using them 9 sec at a time. I actually had my Jessel rocker arms rebuilt during my engines downtime following our wheel stand episode.