I don't want to accuse someone of cheating because i didn't conduct real tests but pool graph is showing less hashrate than the miner (phi algo).

5x1080Ti, fluctuating around 150Mhs, Zergpool, i=20 (no OC, stock settings)

https://pictr.com/images/2018/04/24/56c8de47ccf6e8215b87b07ca9d54bbf.jpg

Anyway, keep up the good work, x16r and x16s definitely the fastest out there we are waiting forward for new releases!