G'day, i have a HDS 5 lowrance sounder i have already mounted the skimmer, and now wish to add structure scan, my biggest problem is that i have a tri hull boat and they cause bulk turbulance.. I guess my question is do any of you guys have a suggestion or a tri hull boat to where i should install the transducer for structure scan?? Here is a pic of my transom.. Any help will be appreciated.. Cheers