Does anyone worry about clocking their spark plugs?

RustyRatRod said
Not only that, but it also introduces a lot of sharp edges into the chamber as well.

Kind of what I meant about the detonation.
Sharp edges cause hot spots that can cause detonation before the plug fires.

KitCarlson said
Not so sure about that, muti-strike helps a bunch, at lower RPMs.
Stratified charge is also a means to insure more complete combustion. Getting complete combustion over the complete dynamic operating range of an engine, is hard. But what we are accustomed to, is what we think. We tune the best we can, but there is often more power to be found. To find, one must measure, few have all the tools, to measure all the aspects of combustion process.

I have to agree with this, as the difference between sparks and how the engine starts and runs has made itself pretty obvious to me.
If you can start the burn hotter and start it with more of the available fuel by using a physically longer spark it seems to make a notable difference.
Hard to explain, but say you lit 100,000 molecules at the same time instead of 10,000 and the flame having to travel to the others.
Kind of like lighting a fuse at one end and it traveling to the other as opposed to wading the entire fuse into a ball and lighting the whole thing at once.
You get a more powerful reaction from lighting more of it all at once.

I know it seems like a miniscule difference, but it is noticeable in the starting and running.