Pros:
Very neat. Looks just like an ebony peg. Makes tuning very easy. I have only retained a fine tuner on the E.
Cons:
The narrow ends of the pegs DO rotate within the peg holes when you tune, so they DO NOT totally remove wear from the peg box.
Other:
You may wish to get a luthier to install them. If doing it yourself then you may find them hard to gently grip and tighten home. You need to be careful with them.
