To the nay sayers, explain me one thing?
Before I decided to do the "top end change", I did a regular oil change when I first got the truck, and then I pulled some oil from the reservoir and compared it to the dipstick oil, the oil from the reservoir was really alot darker than the oil from the pan when compared on a clean white rag.... Wouldnt you have to agree this shows that in fact the oil does not drain back well enough to circulate the top end oil?
That simple comparison was my reasoning to do it...