I have an appointment with my dealer for the new 2520 I just bought regarding my electronic package I want they are strickly RayMarine products and was wondering can you put a goldthru hull on the boat do they have to cut your floor on the boat.I've always had transom mount transducers on my other boats, but I here If you can get a thru hull you get better readings would appreciate any feed back. Thanks Parker Owners.