I agree with Myron (Locomotion) about this. FWIW..I decided NOT to use a windage tray on my 440,instead used a crank scraper from the company in Locomotions post.In the past,a windage tray was always used.I have found that the scraper works and the oil pressure is rock steady.I'm not going to drop the pan and install a windage tray for a comparison,but I feel the scraper is doing it's job very well.