Not the same thing as you asked but I have a friend who shoots three under. He offered to sell a really nice Tall Tines bow to me. It is tillered for three under. I shoot split finger.
I tried shooting it with the nock points set up where he had left them. It shot just fine. Good flight, I felt good enough about it that I used it this fall. Maybe it fell into the parameters set by Mcdave, never measured, it just worked as is.
Curios now, I should measure it for future string set ups.