I make my own slings.
Bottom, notice it is not cut.
top, it is not cut. It is a 5 strand braid with closed ends.
This sling cut from a saddle girt, sort of a chinese handcuff knot, no buckles, easy to slide but grips when you pull it.
Quietest adjustable sling I have ever had.
It is made by cutting 3 strands about 9 inches long in the billet, then giving each a half twist and running the free end through them. This is an old technique used to make horse halters. It works real good for this sling.
Lets see what you use.