Transducer question for Furuno FCV600L

[Reel Smoker]

If you play with it and find a good area to shoot thru it should work fine.Thru hull is always better but id rather have in hull puck to transom mount.I installed a puck (Garmin 188 screen still delaminates) but as far as reading the bottom its great.Like you I use my Furuno thru hull to look for fish and the Garmin while im runnin. Airmar makes a puck for Garmin dont know if they have for Furuno that the puck is screwed down in a sealed plastic housing filled with mineral oil that you can calibrate according to the angle of you hull.I think their website is AIRMAR .COM,you might want to check it out. RS.