I used a gimble mount like Genz did when he started out, and found out it was a pain in the a##.
I figured to forget the Genz stuff and fab. my own.
First go to the hardware store and buy a ROUND level. The one that works great is about the same size of a puck transducer, or may be 1/4 inch bigger diameter. Next glue the bubble level on top of the transducer. I think i used 3M structural adhesive. Now theres a few ways you can mount it to the box, just use your imagination. What i did was use a telescopic radio antenna( free, you can find them anywhere), extended it fully to make sure that the puck is about 3 to 4 inches lower than the bottom of my box and mounted it in the proper spot on the box.
The thin end is double tie-wrapped to the puck.
Works perfecly for 14+ years.
The nice thing about the atenna is you can adjust for first ice and for later in the season when theres a thick coating of snow.
Also even with a 8 degree or 10 degree cone you can see WAY farther off to the side than a so called Wide cone, by angling the stalk
(antenna) off to the side.
I have pulled many tricks with this set up, too many to mention here.
Crappieloo