ORIGINAL: tp777fo
I have been told the razor sharp trailing edges set you up for flutter. My favorite kit manufacturer specifically says to blunt the t/e.
What I've always heard was that you needed to either taper the surface to a point (razor sharp isn't a requirement, just an even taper to a reasonably thin edge), or leave the edge blunt. Rounding the edges is what I've always heard/read tends to produce or exacerbate flutter.
Bob