Approved by professional Martin Artists
| Weight |
E |
B |
G |
D |
A |
E |
Tension |
Model |
| Laurence Juber - Medium/Light |
.013 |
.017 |
.024 |
.032 |
.042 |
.056 |
173.4 |
MM13 |
| Tony Rice - Bluegrass |
.013 |
.016 |
.026 |
.034 |
.044 |
.056 |
184.9 |
MTR13 |
| Tommy Emmanuel - Light |
.012 |
.016 |
.025 |
.032 |
.042 |
.054 |
164.8 |
MFX740 |
