The interference i get from my x5 motorguide...i have done just about everything ive heard to do but still get it on my humminbirds. A buddy of mine using same hbs with a minnkota tm has no issues..never been a fan of minnkotas because i thought they are overpriced. But after spending time with his thinking they are built better. The model im looking at or the i can afford is the terrova with the new spot lock. Does anyone have any input good or bad regarding them? And where is a good place to buy one from if i go that route. Thanks shortdraw