I tried to read through as many posts and threads on here and other sights before putting this up- First time using my x67c the other night, buddy next to me had a vexilar- only fishing about 17ft of water, when I was in flasher mode it went nuts- I tried reducing sensitivity, ping speed, etc, but nothing worked- I ended up using it in graph mode, which is way better imo anyways, but still had moments where the unti would jump around in depth ( 1ft-190ft) and the graph would slow up and fill up, only to go back to "normal" 5-10 seconds later- or it would just fill up with the interferance- He tried reducing his sens amd ir mode, but didnt really do to much- any help from you long time x67c users?