I use the Hds10 with insight with the b260 transducer, I also use the furuno 585 with the b260 transducer but it is just a fishfinder. The hds with the b260 is a great combo. its a little costly but wow it is incredable. Dont buy the hds series without the insight maps built in the navonics chip is not as detailed as the insight. trust me. it must have insight maps built in. you will not regreat it.