Yes, yes I feather the braces and used to tuck them under the linings. However, I started to ask myself: Why? What is this really accomplishing from a structural point of view? I think your point that it might prevent the brace ends popping off with expansion and contraction is absolutely valid, but I'm not sure I'm buying that. My feathered brace ends ain't goin' nowhere and are securely glued and clamped tight. Further, I think there might be the potential problem of the tucked brace ends setting up a vibration once they contract enough and setting up a dreaded buzz which would not be good at all. The thought of buzzing top braces keeps me up at night. I hate buzz. Buzz ruins the sound. Buzz is bad.... I'm not really sure about any of this. However, I am of the mind that a non-side braced top gives a freeer and happier tone. The question really comes down to whether this will be a structural problem down the line and therein lies the rub. Time will tell. I console myself with the thought that any stringed instrument is ultimately ephemeral and we all are going to be dead someday and it just really won't matter.