Spark plugs

[kenmorton]

Has anyone got any experience with all the different types of plug in the same engine ?
Are copper cored plugs better than standard plugs ?
Do the platinum plugs give a performance advantage over the copper plugs ?
Is it worth paying the extra for iridium plugs over platinum ones ?
Or is it all hype to improve the profits for the plug makers with no performance advantage for us users ( unless you include bragging rights down the pub )

[aldi]

I beleive the only advantage of platinum plugs is that they last much longer, I don't think they perform as well as standard plugs though. Ditto the other long life type plugs e.g. 'EON1's. I have tried V-grooved plugs, bosh super4's and and double coppers in my car over the years, the car seems to run pretty much the same on all of them.

HTH
Neil