! Outside !! Inside !! Samples
|-
| <Unknown rock> || Pretty bad || 25.00, 28.00, 33.00, 36.00, 39.00
|-
| Poor || Pretty bad || 20.00, 27.00
|-
| Acceptable || Pretty bad || 32.00, 38.00
|-
| Normal || Normal || 45.00, 46.00, 50.00, > 42= 50.0005
|-
| - || Good || -