I have been slowly adding my accessories to my new Tracker 190 TX. Over the weekend I finished my Helix 12si install. It came out nice. Still tweaking the transducer install hoping to get by without having to add a separate 2D skimmer for depth reading at speed. The really nice thing about this install is the unit can be easily turned to face stern or bow. I am close on the transducer. I was getting very clear SI/DI readings past 8mph and got decent reading on plane at 30mph. Began to loose bottom reading intermittently above 35mph.