Transducer install Epoxy vs Pool Noodle

[emrliquidlife]

So I have an Eagle Cuda 168 fish finder that I want to install in a thru hull.

Seeing an old post by Billy V about bubbles in the Goop, I know I don't want to do that.

So, my options seem to be:

Tupperware style - I don't mind the hand work of shaping a piece of tupperware to the shape of my inside hull.

Pool Noodle - Gooping a piece of noodle that snugly fits the transducer. This creates a pool for the transducer to get a water filled pool for the signal to pass thru the hull.

Epoxy - Transducer straight to the hull via epoxy. As I have read on here, this way is permanent.

Since this is an inexpensive FF, I'm looking to get maximum ability out of it.

Thanks for the input.

Ed