I play bluegrass, old time, and celtic on an M-4 and am quite happy with the sound. For an all around mando at that price, I don't think you'll ever hear a negative word about the Mid-Mos. I really love mine.
That said, though, if you think you're going to play mostly BG, you may look into Eastman 515. It's a traditional F with F holes and may get you closer to the proper BG tone. They get a lot of good words around the cafe. The M-4 is about 600 new and you can find a used 515 from 600-800. Check the classifieds here...
Andrew Lewis
Collings MT2, Tone Gard, Tortis Style C heavy, bootlace strap, J74s
Bookmarks