Just put these Martin Flex Cores on my Lowden and I love how balanced they sound. This is my first time using something from Martin other than Lifespans, so I'm interested in how long they'll last, but they sound great--balanced, warm, clear.
Totally awesome strings. If Tommy E. uses them, I thought I would give them a try on my Olson. These strings sing and perfect for the fingerstyle player.
I usually purchase John Pearse phosphor bronze slightly light strings from Shoreline. They were out of stock so I went for the Martin Flexible Core because they were supposed to be good for fingerpicking.
So far I'm not impressed. I've used other Martin strings in the past and they were very good strings. (I have a Martin guitar.) The tone of the Flexible Core set seems to be uneven from the bass and treble strings. The strings are not any easier on my fingers. As such, I'm going back to John Pearse strings. They are the best strings for my taste, fingers and guitar.