Wire wrapped connections are actually more reliable than soldered connections because of the amount of contact the wire makes with the post. On a square post, a single turn of wire actually makes four contacts with the post at the corners. The wrapping tool literally applies tons of force per square inch on each joint, nearly cold welding the wire to the post. A properly made wire wrap connection will have 0.5 to 1.5 turns of insulated wire at the bottom serving as a strain relief (also called modified wrap) and have six to seven turns of stripped silver-plated wire wrapped around the post, essentially making 24 to 28 air-tight connections.