Ngk V-power Spark Plugs (feedback)

I was at a performance shop today, I was told the best spark plug made for performance is a NGK V-POWER plug.Do any of my yz bros out there run these in there 400 or 426?

I run the normally configured iridium CR8EK, but only because I get them cheap. CR8E's are fine in most cases. Improvements to the spark plug will only help performance if the ignition is marginal and has difficulty firing standard plugs reliably.

Here's a thread on the subject:

http://www.thumpertalk.com/forum/showthread.php?p=5122033#post5122033

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