Ive had the experience working with Fodera over the past several years on three custom builds. My most recent build I found has changed significantly in tone over the past several weeks. I thought it was a myth/or more subtle effect, but my experience changed my opinion. My bass was very aggressive the first day I pulled it from the case (bright and high mid emphasis). over the last two weeks the bass has evened, warmer and richer, but still possess the original DNA of the inherent voice. Even enough I had to raise the back pickup to bring back the bite. I love the way its maturing. Fodera mentioned it takes a month or so for the glue joints, screw attachments, etc. to remove that bound in high residual stresses that occurs in new construction. Playing/vibrations help to remove the bound up stress points a little quicker. This process I assume continues but slows over time. Like my old pre cbs fenders - they do not move one bit no matter what is temp, humidity etc.! They sound very "stress free". This makes sense to me and I use this vibration technique in my day job sometimes to remove residual stresses in weld joints, etc. as an example Anyone else have this experience?