Lets start with the fact that its not an alternative explanation, but it's another piece of the puzzle
yes lean mix can burn slower then a rich one, the problem is that in order to describe why burn rates go up as the mix becomes leaner and leaner (until it does not burn at all), requires an explanation that touches on everything from chemistry to thermodynamics, and it's something that is actually quite hard for me to understand, but yes, some leaner mixes will burn longer then the richer mixes....
( if you feel like reading into the science of it, here's a google book to start with:
Combustion: Physical and Chemical ... - Google Book Search )
it's way aboe anything i will care to read to answer a post...
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Microsoft, the leader in using innovative tactics to promote irksome experience, coupled with antiquated technology that's held together by a pyramid of makeshift afterthoughts.
Apple, the leader in using irksome tactics to promote innovative experience, coupled with an antiquated core that's enhanced by state-of-the-art afterthoughts.
Linux, the leader in not using any tactics to promote user-defined experience, coupled with state-of-the-art core enhanced by innovative afterthoughts.
