I am not a fan of text frame baseline grids. I can't control them with any form of precise that I want.
So how to do I align text vertical? It's not like it's possible to use the document grid, as you can't make the baseline of text snap to anything other than the baseline grid, like in Illustrator.
Is there a way to do this? Other the text frame grid?
No, no other possibility exists. Sorry.
Screenshot please! ;-)