Lowrance has done a lot of testing on the transducers and have found their HDI Skimmer and the TM150M to be the ones that provided the best results. I tried the HDI transducer on my Elite CHIRP unit ice fishing this year and it did provide better results than the traditional ice ducer on Medium CHIRP in deeper water (60'+)
The HDI Skimmer is $141 currently
http://radioworld.ca/lowrance-skimmer-t ... 12828.html. The big plus to using this transducer is you will also get down imaging with it on a HDS Touch Gen2 and Gen3.
-Lawren
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