MRL Roller Lifter Street Durability

Old Man Mopar said

I have been looking at ovate beehive springs and will probably use them.

I think that this will be about as low stress as you will find for a solid roller
setup that makes any power.

I used to be a Harley Davidson parts manager and crewed for a top-flite
AMA Dirt Track team (Steve Morehead) for several years. I built the
engines with Hank Scott. Spent time on Jerry Branch's and Carl Patrick's
dynos. I know of where you (DusTed74) speak.

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I'm a big fan of the beehive spring. We've been using them a lot too.
You were in good company with those folks. I bet that was a lot of fun and a big learning experience as well.
I've been to Branch's shop a few times. I never had the pleasure of meeting him,but it's different now since the company has been sold twice. It is still a cool place. Lots of history there. Its pretty much a 1 man operation now. He worked with Jerry for a long time and he's keeping the shop going.
Just one thing about oil. We just released a private label brand of oil that (so they say) has the highest levels of zinc of any oil currently on the market. So my question is, if zinc is not important to a roller tappet engine why would we offer it?