If you look at a Zager after about a month of solid use, you’ll notice small grooves appearing under each of the strings on each fret going down the entire fretboard. This is part of the design of Mr. Zager's guitars and poses no issues in playability, sound, or fret life. Our metal is slightly softer and because of this you will see little indentations in the frets after several months of use, but this is part of their design and why Zager guitars play easier.   Because of this design, our frets have an extremely long life. We’ve had customers with our guitars in excess of 30 years with original frets with no issues in playability or sound, so they actually last much longer. Now if you’re having a buzzing strings this is caused by dryness and is addressed on our humidity page at https://zagerguitar.com/humidity-and-your-guitar/