I have a Snauwaert Ellipse Touch C which i pumped full with silicon down the handle. In now weigths 399 grams (strung plus overgrip) and it plays pretty good (only for short time, max 1 our doubles)
Other frames i regularly use are HEAD Graphite pro at 375 gram (strung plus overgrip)
To be Honest these are a little to heavy for optimal playability.
350 - 360 (strung) is a great weigth