developtrust wrote:

> I've heard the same thing and the opposite. I can not see how 3 or 4
> electrodes would make a difference. The spark is going to take the path of
> least resistance.
>
> Does anyone know if this is just subjective or is there any real empirical
> data to back this up?
>

What I was told by a tech rep for SplitFire plugs:

The spark develops at all "sharp" edges of the electrode, therefore if you have
multiple sharp edges you will get a spark with quicker response time.
Splitfire had given the parts shop where I worked a cool video of how this
works.

 The Splitfire has the V-tail electrode, AC has their Rapidfire (with a circle
of serrated edges around the center electrode), Bosche has the DTC (triple
electrode) and the +4s, and Motorcraft has a platinum with multiple
electrodes...

                    JonR