line spacing in float captions too narrow?

[timmli]

Using a recent skeleton, the line spacing in float captions looks very/too narrow to me. Consider the tiny distance between the g and the M in the following example:

[Glottotopia]

there might be a point in having {stretch=.9} instead of {stretch=.8} for \captionsetup

[stefan11]

Yes, please. This is related: langsci/259#42