Probably can guess what the answer will be but here goes. Recently bought a second boat for trailering around. Its got a Lowrance lms 240 plotter/sounder combo. I just happen to have a spare colour fishfinder kicking around (as you do!) and was thinking about sticking that on as well, the idea being I can have one zoomed at one level and the other set differently.. so the questions is.... will they interfere with each other?? would it work? the other finder is a new navman 4350. Is that a better unit, in which case I suppose I could just disconnect the lowrance transducer??