[Oldguy64]

I like, but don't own a cedar topped guitar.
Cedar has a tendency to be a bit warmer sounding than spruce.
That warmth and Phospor bronze could be a darker sound than you're after.

Personally, I don't like most Martin Strings.
FOR ME, I find they take a bit more effort to play. They sound great. But I don't like to work that hard.
That said, I have a set of Monel Martin's, that are on deck for the next string change on one of my Alvarezes..

Also, you might find other brands of strings have a different sound that might appeal to you. PBs are not the same across different brands.
My current go to, is D'Addario EJ-16s.
But I also play Fender Custom Lights.
I've been using the 80/20's on my 5013 for many years. And despite the "fact" that they are SUPPOSED to be brash, and bright, they aren't on this guitar.