sdonx,
Bait is a much easier to detect than that of individual targets, especially at the depth you intend for swordfish.
The CA28F-18 is a 2kW transducer that will provide you better depth performance with a wider beam than that of the B164. The CA28F-18 has a beam width is 17 x 18, (the 17 degree beam width is fore/aft, and the 18 degree beam width is port/starboard.) If you use this transducer for your FCV1100, your fish targets will appear longer.
- Deep Blue :wink7