i'm sure the transome mount will provide a cleaner signal and probably better readings, but like you said, it's just the thought of putting holes in a boats hull (below the water line) that makes me think twice about doing it. especially when there might be another option where i don't need to drill holes.
also, right in front of the intake (in the engine compartment), appears to be a thinner and flat part of the hull to glue it to.
Steve
2003 Speedster 160 w/ 240 Merc efi
- 20091800challenger likes this