Degree of Tilt for Thru-Hull transducer?

[John3325]

Good evening all,

Ordering a new electronics package for my 23 Seacraft IB. I am going with the Garmin 741xs or 742xs, and will be getting the B150 thru-hull with it.

Question is, what degree and what location should I be getting and doing? The transducer comes in 0, 12, and 20 degree configurations. The thru-hull will likely be located in the bilge where accessible towards the inside of the boat, so I think that means I would want the 20 degree configuration?

Any help is greatly appreciated!