Should multipath routing be enabled for z/OS Enterprise Extender connections?

The SNA Network Implementation Guide addresses this question, making the following observations:

"Multipath for Enterprise Extender (EE) is disabled by default. Enabling multipath for EE can lead to poor performance. A common problem is that one or more of the routes might not have a path to the destination IP address. This can result in packet loss of up to as much as 50 percent. Another problem is that one route might be slower than the others, which can cause half of the packets to arrive out of order. Both of these conditions result in poor send rates for the HPR connections that are using the EE connections.

"Multipath for EE is controlled with the VTAM start option MULTPATH. To enable multipath for EE, code MULTIPATH in the TCP/IP profile and code MULTPATH=TCPVALUE in the VTAM start options. To disable multipath for EE, code the VTAM start option MULTPATH to the value NO or allow MULTPATH to default. If MULTIPATH was coded in the IPCONFIG statement, all other applications will continue to use multipath. "