You want the string just in front of the first notch of your index finger, just behind it on your middle finger, and on the pad of your ring finger. Most of the weight will be on your middle finger, followed closely by your index finger, and finally, your ring finger should be holding just enough weight to keep the string from pinching your middle finger. Too much weight, and you will have added torque on your string and it will slightly change the tiller of the bow. This hook will also be the same for both split-finger and 3-under shooting.

Find more tips for shooting a traditional bow here: https://www.outdoorlife.com/traditional-archery-101-how-to-get-started