Just did a no additional holes in hull transducer mount. Page 1 at the bottom shows the very first step, and the bottom of page 3 shows the finish. There may be an additional pic of the finished install on down in the thread. I sure hate drilling holes in the boat. Good luck to you and congratulations on the new equipment. I know you will love it.

http://www.crappie.com/crappie/arkan...-thread-3.html