Interesting spark plug article.
 

I found an article about spark plug internal resistance.I had never thought of this before but I'm thinking about it now.After all a good running engine with no hidden,intermittent misses is an efficient engine.
http://www.lubedev.com/articles/flameout.htm

Remember this is the internet,don't blindly believe everything you read but I am going to check a few different plug types to see about the resistance.

RE: Interesting spark plug article.
 

Talk about making a mountain out of a molehill...

RE: Interesting spark plug article.
 

I find it hard to believe the author is an engineer. His term "ohms resistance" is strange, and the notion that his clutch losy 30% of its life due to missing?? I will, however, make a point to check the resistance of any new plugs I'm installing out of curiosity. And will likely consider NGK for my domestic vehicles (I already use them in my BMW and Nissan).