Oh geez, probably all too well. Keep in mind there are the batter heads and the resonance heads. They can and are usually tuned to different frequencies. Then there are the snare wires, 20 wire, 14 wire, and tension. With respect to transients and attack, it seems that with wood and there isn't much difference. However metal usually has a stronger attack and more energetic sound. This seems to be true with turntables and headphone cups, e.g. SR325. Before the X with the flat F cushions, the SR325 with the metal outer cup and the bowl pads was known to the be most energetic and aggressive sounding of the Grados. This sound had its fans, but many also screamed bloody murder because it was too much. With the F cushions which make the sound more neutral, the SR325X are one of my favorites. Which reminds me, I need to put this stuff on the loaner program.