I seem to be the odd man out, no surprise there. If shots are inside 250 yards, IME monos work fine at 2800fps MV. That probably gives an impact velocity of over 2500fps which has worked fine on smallish deer and plains game.
Shoot for CNS or bone and you don't have to over drive them.

I am continually astounded at how quickly people make up their minds on little evidence or none at all.
Jack O'Connor