Transducer mounting hardware

[Flex]

Sorry for all the new posts lately, just filling up my brain with as much sonar data that I can before my purchase

I just got a new boat, the boat came with a Humminbird 500 series a believe??? but it has the XNT mount.

I want to purchase the Helix 7 SI and exchange the transducer for the XHS 9 HDSI 180 T, that is the correct one right?
Will I notice a difference in image quality on the smaller sized 7" screen?

I noticed that hardware to mount the HD to the transom has a similar hole pattern as the XNT.
Basically will it fit or will I have to drill more holes in my boat to fit the HD?

Does anyone have a pic of the two mounts together?

I really want to mount it in the same spot.

Thanks for any info.

[Wayne P.]

Yes, you will get sharper images with the HDSI.

The XNT has two slotted holes and the XHS has three. Spacing does not match.