You might want take look at this mount for your DSI transducer.. They way you have it..It might break easier.

Trolling Motor Adaptor Part # 000-10261-001 $19.95
Attaches transducer to a trolling motor.

Works with: Elite-5 DSI, Elite-5x DSI, Mark-5x DSI

here's a link of a pic

http://www.google.com/search?client=...UTF-8&oe=UTF-8