I'm not as experienced in equipment as a lot of other guys here, but I've played with three popular 5 plies (Nittaku Acoustic, Yasaka Sweden Extra, Donic Appelgren), a '7 ply that plays like a 5 ply' in the Sanwei Fextra (I actually have 3 of them) and a regular thicker and stiff 7 ply in a...