This subject was hashed several months ago over 4 pages of debate
and I feel confident about their value on this model (Mariner 37/Helmsman 38). Another issue cropped up as I sized up the job of determining where to drill the holes. Mounting the new spring cleats further forward means better accessibility from aboard while standing outside the pilothouse doors, but it involves modifying the mounting strips in the day head that secure the shroud over the fuel filler hose. Further back means easier and perhaps more secure mounting, but worse accessibility from aboard.
Further forward is better in my estimation, and that means that the backing plate for the port spring cleat will be bisected by a wood strip that secures the port fuel filler hose shroud. Is it better to use two backing plates, or remove enough of the wood strip to allow a single backing plate that spans both cleat mounting feet?