All double rollers are not created equal

Running the MP tensioner and Summit brand billet 9-keyway, two different cams, 4 years use no issues, no concerns. I haven’t been (and won’t be) convinced there is or will be a problem running one. And I run that oem slinger-ma-bob too. No issues, no fouling or rubbing on anything. Haven’t been convinced it’s bad or will go either. Both work as they should on my engine.

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No one ...EVER... says NOT to run an oil slinger. That not even even a question here.
When under post the timing is solid, as said. Only deceleration and idle does the tension really do much.
*The valve springs are stiffer than that tensioner is...it still moves/jogs...just a lot less..and not as erratic.