Gibson Hummingbird bridge thickness. in Gibson Acoustic Posted August 11, 2019 · Report reply On 8/7/2019 at 6:01 PM, blindboygrunt said: That's very definite I hope you're happy with your guitar I mean that with the utmost sincerity Yes happy now Ive refretted it.. For what they cost you would think that the frets would be stainless steel to start with. Replaced the nut and saddle as the the frets are now a full 0.055" high. sound is much better and the action is a lot slicker. Plus no more worn frets. This is a keeper as I said the wood is right. The mids on the Hummingbird are very good and now the harmonics at the 3rd ' 5th 9h and 12th really ring. The guitar is also generally a lot louder. Hummingbird with brand new frets , cant get any better... Thanks for the concern Billyboygrunt.