Hi Pura,
I don't have a Truetone Eastman but I did own an E20D-TC for a year from the nitro years and have now owned a Bourgeois D Vintage for close to a year. The finish on the Bourgeois is showing little pin prick spots from the pores on the rosewood. While this might disturb some owners, I see it as evidence of a finish that was applied as thin as possible while still protecting the guitar. The top is cooked adi and I detect no change in color, but it was already a nice creamy amber to begin with. The grain lines are just beginning to telegraph through to the surface, so the catalyzed finish is shrinking back, but not as much as on my Martin or previous Eastman.
On acoustic instruments it is well accepted that a thicker finish suppresses tone. Also that a softer finish can mute the highs. This is part of why vintage guitars have such sparkle in their tone. Really old nitro has become really thin and hard, if not brittle. The catalyzed finish will cure/harden WAY faster than nitro. I've put both kinds of finishes on instruments and and see no disadvantages to using a modern finish.
I don't have a Truetone Eastman but I did own an E20D-TC for a year from the nitro years and have now owned a Bourgeois D Vintage for close to a year. The finish on the Bourgeois is showing little pin prick spots from the pores on the rosewood. While this might disturb some owners, I see it as evidence of a finish that was applied as thin as possible while still protecting the guitar. The top is cooked adi and I detect no change in color, but it was already a nice creamy amber to begin with. The grain lines are just beginning to telegraph through to the surface, so the catalyzed finish is shrinking back, but not as much as on my Martin or previous Eastman.
On acoustic instruments it is well accepted that a thicker finish suppresses tone. Also that a softer finish can mute the highs. This is part of why vintage guitars have such sparkle in their tone. Really old nitro has become really thin and hard, if not brittle. The catalyzed finish will cure/harden WAY faster than nitro. I've put both kinds of finishes on instruments and and see no disadvantages to using a modern finish.
