Problem with Harland Sharp rockers

I was asked if I would start a thread here about this. I cannot say if HS has done anything to keep this from happening again, but this was my experience several years back......

I had my fingers all oily in Ron Mancini's 62 Max Wedge motor once. Was in Atlanta. That's when I decided I'd never run Harland Sharp rockers in any of my motors, cause they were the cause of his motor going poof.

The HS rockers are really thick...or at least they used to be. They were so thick (how, thick, were they) They were so thick the bottom of them were cut in a crescent to clear the valve spring retainers. They really should have "square" cut them. cause what happened in Ron's motor was one (or more) of them "walked" and tried to push the valve open by using the bottom of the rocker on the spring retainer. This obviously allowed the keeper to pop out and bad things happened.

Could this be avoided by using a lock ring between the rockers? Yeah, probably if you had an idea something like this might happen if you didn't. but in this case it did.

So there ya go. Like I said. I have NO idea if they have done anything to the design to keep this from happening or not. But this is what really happened to a long time racer who knows what he is doing. Yet it still went bad.