Sorry, Glen. I would never put anything between the oil tank and oil pump after my experience wth the spring loaded valve. AMR mod, both timing cover and pump. No keys, no Gyro Gearloose gadgetry and NO worries. Your valve is well designed. It’s just introducing an unnecessary risk for naught, when there already is a risk free solution to wet sumping. I have no issue with you personally, just your certitude that putting a valve in the oil line is a good idea. If your comments are to drum up business for the valve, fine. Let the buyer beware!