I shoot Longbow, and I use a low grip with locator.
I put the bows draw weight against the mid to low part of my palm. As a guess, 70% mid, 30% low. I do not touch the shelf side of the riser at all, allowing a cavern to form in my hand with space between bow and hand. I hold pinky and ring finger off, and out of the way touching nothing. My index finger pad, and my middle finger pad is gently placed on the grips face dead center, never putting any more pressure then necessary to just keep the bow in place when shot. My wrist is turned with pinky hand knuckle at 8 O'clock, pointer hand knuckle at 2 O'clock. I use a slight cant for the bow. Thumb is touching, but layed on loosely to the locator, never firmly.