I had 3 1080 ti in 2017~2018
It was a best, launched in Mar 10th, 2017 and you can make profit, almost 5 years after
Resume: if you find a cheap 1080ti, in good conditions you can make some profit.
Been running 1080ti since 2018 so gone through all the miners and ETHpill and dumped it for the --mt command in Gminer, as much more stable IMO.
I have tried phoenix , T-rex and Gminer and best results with Gminer combined with a slightly lower dev fee compared to T-rex.
--mt command has 6 settings compared to the ETHpill " on or off ", I can achieve higher overclocks and super stable.