I may have to remove a Factory/dealer installed transducer from the bilge of my Puma..It has the black Epoxy holding it down. I have read that guys just hit them with a hammer to break them free but that makes me a little nervous, how do you guys get them out….?? Would it be better for me to cut it out with a cut off wheel in a die grinder??What is the best tool to sand out the epoxy after removal of the TD?? I have a dremel and a Dewalt electric hand grinder…I also have a Pneumatic die grinder…..Thanks for any info