The crank whipping the oil can help break the oil down sooner and make it foam...doesnt lube well as foam...can be hard on he assembly if there is alot of it on the crank as it can change the balance of the setup...like mud on a wheel...the faster you go the worse it is...
On a slightly related topic...
I once worked in a store where this guy came in and bought 5 quarts of oil....few minutes later he comes back and buys 4 more...then he comes back and asks me how much oil does his motor take? Well this 25-30 year old had poured all the oil into this thing already and since the oil wasnt up to the FILL CAP, he figured it wasnt full.......had no clue what a dipstick was....all he needed was a mirror and he could have seen one!!
Lord send your Holy Ghost into our hearts and make the desire of our hearts Your Will.
Pro-choice, that's a LIE, babies don't choose to die!!