Anyone got any experience with Screamin' Eagle Lifters (Tappets) or the Head Quarters Black Ops lifters?

Trying to decide which way to go.

 

I would go with the HQ black ops lifters.&nbsp\\; HQ designed them because they found the others wanting.&nbsp\\; I trust HQ.

 

My dealer's service manager recommended NOT to buy the SE lifters.
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+1 for the HQ black ops lifters.&nbsp\\; Kevin from HQ is a good friend of mine and he has them in his 113" HQ engine\\; very, very quiet motor.&nbsp\\; They're made for HQ by a small (relatively speaking)&nbsp\\;manufacturer to a very tight spec.&nbsp\\; I mention that to simply make the point that they are not some re-packaged lifters otherwise widely available from some other vendors.