Johnny, a central hold over the bar ( one finger either side is the best), as you'll have board in the other or under arm means yo won't have a free arm to activate safety, keep this in mind, it's not hard to lose a few hundred mts in a few minutes when learning, if your not competent or your spots a bit scetchy for self launch and land then leave a teather option to land your kite downwind, a big hike in wind strength mid session, can be a great cardio workout