Fly the Team Iceshanty Flag! Iceshanty Proshop
My son and I each have an LX5. When in the same shack I can usually clear up any interference with one or two taps of the IR button, doesn't make much difference if on wide or narrow beam. Perhaps these newer models just have better IR systems.
A trick we do when its an issue. Have the newer unit under the ice and the older unit just a few inches under the water. This trick allowed me to see clearly at the brainerd jaycee event. Where i was sharing water side by side with about 3k flashers.