marine or water safety - should it be in stunts or additional crew?

This might come under individual's choice but does IMBD have a preference for where this credit is placed?

In the past I have seen the same person carrying out the role with credits in both sections for different projects.

I noticed that the system has suggested placing the "water safety" credit in Stunts unless I choose to move back to Additional Crew, I can't remember being offered this choice for "marine safety".