I'm installing this ps31 on a manual deploy pole. It will be mounted just like the trolling motor mount in the first picture. Can anyone tell me if it's matters what way it's mounted in bracket. You can mount it either with the Garmin logo towards the trolling motor shaft or 180 deg facing out toward open water. One end of the transducer also has a spot on it where it looks like they filled the transducer at factory. Thanks Steve