I'm using this software with GTX1080 and Claymore Dual Miner 11.7. Hashrate raised from 25 to 34 MH. It doesnt work with Monero miners and with Phoenix miner.
It absolutely DOES work with Phoenix. Im using it on 2 different systems.
I've also tried ETHpill with XMR Stak and it imporved my hashrate on Monero v7. I mined it for testing purposes and I can't recall the amount of increase, but it was very obvious, like 20%-30%.
Oh but I'm using a 1080
ti, you mentioned the 1080.