To be able to remove my working decks my servo also needs to be easy to take out.
I cut the mountings off this excellent mid size servo from hobbyking (6 of in my Shannon) and made a bracket that would hold the servo upright whilst the transom slopes away. The servo is CA'd to the brass.
I have a more than double thickness transom due to an error early in the build so this has been doubly rewarding now.
I used some shorts screws and screwed them in as far as I dare without breaking through then cut them down to a safe length.