I have a 12" TZtouch2 with an FUR525T-LTD-12 transducer and a DST800 transducer. I believe that the fish finder is using the FUR525T transducer but not certain (its just showing source as the TZT but theoretically, that could be using the DST800. I can't seem to get ACCU-FISH to show fish symbols. Not sure what the problem is. Do I need to disconnect the DST800? Does the FUR525T work with ACCU-FISH? I'm normally working in 20 - 40 feet of water. Is there a better transducer for this? I really don't use bottom discrimination. Thanks...