By captions I mean the wording and source usually directly beneath the picture itself

This is a grab from one my of my recent articles when viewed in steempeak

And the same image when viewed in steemit

The steempeak only uses 2 lines but extends past the picture itself. The steemit view is 3 lines but aligns perfectly with the picture itself.

This is causing me issues with the text of the article itself and how it wraps or flows around the pictures.
If I align everything on steempeak, it doesn't look right on steemit at times and vice versa.

Yeah the steempeak editor is so much more convenient for me as well. Really want to keep using it but also don't want the articles to look off depending on where they are viewed.

Glad to hear its working for you, that means its probably just me and if I can figure out what to change I should be able to get this to work as well