While the Helix 5 and 7 packages are nice. I wanted to experiment with my Helix 10 G2 for ice fishing. Reading about the new Ice Ducer XI 9 1521 it further my want to try this. Anyway contacted Humminbird Customer Service via email at first. By email the agent informed me my unit is not compatible with any of the ice ducers. So called by phone said no the XI 9 1521 but yes to Xi-9 -20. When pressed as to reason why they informed me it is a software thing.Which is CS speak we don't really know.
Ninety percent of the time CS advice is right on. But I know from experience that the ice fishing knowledge there is weak at best. Alabama= no ice fishing. So that part is understandable. Some of the agents are also really weak on Legacy units and transducers.
Know this is a long shot but does anyone have a Helix 9 G2 or up hooked to the XI-9 1521. Can't believe they have designed different internal circuitry for the Helix G2 5 & 7 models as far as transducer goes then designed for the 9 , 10 and 12.