Is it necessary to have the Default suffix on output variables like SshCellDefault?

[xylar]

This feels awkward to me because the suffix Default has no context in most output files.

[philipwjones]

Yes, I noticed this too and for most other classes (eg State, Tracer) we avoid adding the default suffix so we should be consistent here. Personally, I also think it's unnecessary to have mesh location (Cell, Edge, Vertex) in the name when it is the default location, but that opinion may not be universally held and it could still be useful for some fields where it might not be obvious.

[xylar]

I would also prefer to just call the variable Ssh.