Stretched resolution? Is it worth it or not?

Boody200

Hi, I've been using 1080p resolution in Crossfire for a while now, I've found out 4:3 and 5:4 resolutions get stretched on 16:9 monitors which means other players will be wider and easier to hit, so should I start using stretched resolution or not? and if I should start using stretched resolution, which one should I use? and can I add a custom resolution considering I wanna play on 1440x1080?
Have you tried stretched resolution before? how did it feel? did it make you better or worse? and can it really cause input lag considering it's not the native resolution of my monitor?