Nice set-up for the people who make fishing their priority. That is a simple transducer set up.

I read various discussions about the merits of just shooting thru hull and any possible  signal "loss" doing it that way. Since I had no real experience/knowledge either way, I decided I would blend some ideas together and see how they worked.

That 1st pic is a little confusing becasue it's BEFORE I attached the transducer to the hull. The round plastic tub I attached to bow with silicone adhesive using an X inside a circle pattern. I cut slit in side of screw lid container and then drilled hole the size of transducer cable.

You put transducer in container and to hold tight to bottom I used that white closed cell foam piece you see at top of pic. Then I filled tub with water and screwed on the lid. Even on portages the water stayed in.

I don't know if that helped or not, but it was easy enough to do. I didn't leave it attached, I just used a knife and peeled it off the end of trip.

I don't take fish finder on traveling trips I wanted something quick and easy for base-camp ones like that Fall trip.

ps,
I have rod covers BUT I like that neoprene idea. Never knew about those, will check out. Thanks for that.