My first bow, ash, had a small roundheaded brass nail set in through the belly side of the handle where the web between thumb and forefinger met. My current every-once-in-a-while (used to be every day, but I am lazy) shooter has a John Strunk style lashing over the grip and my forefinger lays on the second line of lacing.
I have also added 200 yr old Italian handmade trade era glass beads into the grip lacing to anchor the botton of the hand. Probably as many options for grip indicators as there are bowyers out there.
I guess that's another reason I shouldn't post here...prolly not primitive enough, huh?