Well I did a few videos on my water damaged transom, using the hammer, drill, and moisture meter. It is showing sighs of water damage near top of motor well area , topside near rear of both storage doors, and in other areas.
Below are the you tube links, .
https://youtu.be/YR1I62BBfe4
https://youtu.be/FL5F1lgtxTo
https://youtu.be/3BPXg67UTYQ