Right now I use a transom mount Helix 5 gps/di for running and for fishing. I just twist it around when I move up front. But I feel like I am losing advantage when I fish up front and the transducer is in the back. I also have a Mark 5X Pro that I upgraded from. My TM has a V2 in the foot that I think works. I haven't tried it yet. I can buy a adapter for either unit but will lose DI if I hook the Helix to the TM. And if I need to run the Mark 5 to the transom I have to buy a transducer or could I just shoot thru the hull with the transducer I got with the Mark 5. I am looking for ideas on how to use the two to my best advantage. And if you have a part that I need like the adapters or the transom transducer you want to unload let me know.