As @audphile1 suggested, give ENO a shot, preferably with complete ENO streaming system between your Cisco switch and Weiss. That would be a fair comparison between ER and ENO. Before you do, check Ethernet specs on your Weiss. ENO is designed to operate at 100Mb/s and most DAC with Ethernet card spec’d at 1Gb/s.
Is ENO better than ER, let your ears guide you to promise land.