Mixture Distribution
The reason that LOP is a problem with the OEM's is because they were too lazy to fix their fuel distribution problems. This is of course in their highly overpriced engines, that they should have taken some of the profit from and plowed it back into development. Its not because they didn't know what LOP was.
They have enjoyed a monopoly for way to long. That's ok because reality is now biting. Build a product for a reasonable price and the people will come.