More effective load balancing by a Server Load Balancer may be achieved by implementing extended Server Load Balancing information in a server. The loop-up table is rewritten as the oil in the tank is consumed. The instrument pod is inserted through a tissue tract into the body cavity. The nose element is formed of a resilient material such as an elastomer, and has a first portion received in the cavity, and a pointed second portion extending from the forward end of the body.