I hit for about 20 minutes last night with a club demo......Head Metallix 10 tennis racket
It felt like a very solid racket but is WAAAAAY light (at least compared to my Dunlop). It would take quite a while to get my timing down with this one.
Made of a specially designed matrix of carbon fibers and a new crystalline metal alloy. This alloy’s grain-size is 1000 times smaller than that of a typical metal*. The decreased grain size means increased performance, or, as the Hall-Petch Effect states: smaller grains = stronger material. The result is a lighter, stronger and more powerful racquet than ever before.
The most powerful and most advanced game-improvement HEAD racket ever!
Also incorporates Head Flexpoint technology.
Beam: 28/30/32 mm
Head size: 800 cm²
Weight: 245 g unstrung.
Balance: 350 mm / even
Length: 695 mm
String Pattern: 16/19
tennisnuts power level: 10