Rolf says about his Bluegrass model;

Designed for the special bluegrass sound with medium-heavy to heavy strings. Professionals describe this model as having a "cutting chop and superb bass," "great playability," "doesn't seem stiff or hard to play," "perfect balance between strings," and they remark on the added volume and clarity on the E-string, especially in the studio for recordings. Some players use the increased playability to make chop chords on the 12th-14th frets.

If you a looking for a powerful bluegrass mandolin look no further but don't discount it for other styles, this is a very versatile mandolin, light and responsive to all playing styles.

The standard from Rolfe has a mere strap button to hang it over your shoulder but it makes up for the strap hanger complex with amazing responsiveness. As is the Phoenix trademark it seems to get to the note before you do. Not quite as light as the neoclassical but still lighter than most giving it amazing resonance and projection. People often ask my about playability, I usually respond that it is different for different people, for me this is it, light and open. It has a very punchy sound with well defined bass, strong mids and very precise and clean trebles. I almost forgot to mention how great it looks, Rolfe told me this one has extra specially flamey maple, the photo doesn't do it justice but take a look anyways. With hardshell case.