Rick, I have had amazing results on 80M with Olivia 500/16. With QRN crashes to 10 over nine, I was got near perfect print from a station in Florida that normally would run at S 7. True, the speed is a bit slow but a greater speed is provided with Contestia which I have used but have not yet tried under high QRN. I see no reason that Contestia 500/16 would not perform as well.
Yours truly, Eric - K9NP