If you are a skilled player, Single Point Sling is definitely the way to go. Venation is a slow RoF higher impact hand cannon, so you do not need perfect balance. Outlaw means that you will be reloading extremely quick after precision kills, so you really do not need more ammo. If you find yourself running out of reserve ammo, then you can use field scout if need be - but it is never a problem for me. Disclaimer: I am one of those rare people who uses single point sling on my Fatebringer... it's much more useful in capable hands.