Ray, just my two cents, but if your oil pressure steadily climbs along with rpm there is little to no oil foaming to indicate a windage problem.
You can do a test by comparing oil pressure and rpm numbers running with a full pan v/s one quart low.
With the deep pans the RV engines have I doubt there would be much of a difference if any. No difference in numbers means likely no benefit from a windage tray.
Sounds reasonable.
I can maybe see where WOT on a 7% grade and a full pan might be an issue - I'd have to test with a mechanical gauge though, I'd guess the OEM would be a bit slow to react.
Although, I could monitor the sender with a DMM.
