I never liked the term "Cheek Weld" because it seems to give the impression that it's a heavy pressure applied by the face. IMHO, "cheek weld" doesn't have to be heavy pressure, but a very consistent feel that positions the eye perfectly behind the sights for each shot.
Cheek pressure applies transverse force to the bore and heavy pressure can cause strain in the neck muscles, resulting in variations in pressure.
I'm not a 3-P competition shooter and rarely use slings for support. That said, my shooting position philosophy is that positions should be as comfortable as possible and that most force applied to the rifle, (except for countering the forend weight) should be straight back to the shoulder. The stock comb should be configured to aid repeatable eye alignment.
That's my story and I'm sticking to it.
“God save us from people who mean well.”
― Vikram Seth