Martin MA535 Authentic Acoustic x3

I used this strings to replace the standard 012 D'addario on a solid cedar top, blackwood back&sides, used for bluegrass rhythm guitar grand auditorium, it's a very good combination. On a solid spruce top/mahogany i use the Martin MA535 . This is my fingerpicking OM guitar a little bit clearer/brighter in sound but not as loud as the solid cedar/Martin Retro combination.