I use jet divers sometimes off the planer boards and sometimes I long line them streight off the transom. They are marked with a # on the rounded nose portion of the jet diver. Sometimes it's hard to see but it's there. That equals to the depth that they will run at with a given speed. We sometimes put a in line lead weight in front of them to get them down a little farther. I'm not exactly sure how deep we are but sometimes it works?