I use a slightly shorter draw length when I use a release because I anchor farther back when I shoot fingers .
By touching the string to the tip of my nose (with a release), it keeps my anchor point the same when I aim downward from a treestand , and keeps me from dropping my bow arm when aiming downward .
My form stays the same by bending at the waist and keeping a solid anchor . If I happen to drop my bow arm while aiming down , the string moves away from my nose at anchor . This is just another way to keep my form in check when shooting at steep angles .