Hi guys, i read a lot on here but this is my first post. I bought a new HB 998 and the quad beam transducer. I have it installed and everything seems to be operating. I feel like the transducer is in the proper location because when the boat is planed out, it will read the depth fine. When i slow down and look at the si, the picture seems to be fuzzy. Is there anyplace i can read about the initial setup? Also when i select quad beam for the transducer, it shows the si in switch fire...?? Any help would be greatly appreciated. Thanks