Low rpm/high mp increases radial tension on piston rings reducing glazing and subsequently oil consumption.
Thanks for that gangsta. I've heard another along these lines - low mp high rpm can cause ring 'flutter' and that high mp will prevent this by the higher radial tension. Can you confirm / debunk this?
(I assume by flutter that the engine oracle I was speaking to meant the ring was somewhat 'loose' in the barrel which made it prone to a stop - start sort of motion within the cylinder groove. Just guessing, don't know how you'd ever investigate it)