Hey pantera123,I am sure many would love to reply, but most run or will be running Humminbird. Everyone has reasons as to why but majority would say customer service and product backing has kept them from using lowrance or converting over. The HDS series are great units and I have many friends running them on various other boats, but the ones with them say they hope it never has a problem because right now it is a toss up as to whether or not it will be taken care of in a timely manner.As I stated above, the HDS are great units, but many, including myself, feel for that kind of money it shouldnt be a PITA or take forever to get the unit replaced or repair if a problem occurs.Jay