I was unsure about getting one during their sale. Every once in a while I get insomnia. Got it that night. I was awake at 4:00 a.m. so I took advantage of it. BPS is about 5 minutes away. Long story short, I got the 10" Helix at a super price. I wanted to mount transducer on trolling motor. Now I find out, according to HB transducer chart, I can't mount this transducer, or any alternate transducer for this unit, on a Minn Kota motor of less than 85 lb thrust, mine is 45# Edge. I've sent email to HB and am awaiting reply.