Broken rocker arms two weekends in a row

inertia said

If the needles have worn ridges ( like a worn u-joint, limited motion back and forth created troughs) that the needles recess into, that the initial pressure to get the needle/rocker to move, could be twice the actual force needed to "rock" ? ?
With the extreme spring pressures .
Pic is extreme of my meaning .

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I see where you're going with potential needle bearing issue causing my breakage, but I really don't think it's a contributing factor in my case. The bearings on both broken rockers looked absolutely fine, there was no evidence of any failure at all. I had a couple other racers who are familiar with HS rockers look at them and they both told me they were fine.