I just bought a tape called "Forza" (written up in Fitness magazine) which is a fitness workout using samurai sword training features (uses a wooden sword). The creators have several tapes out under the name of Powerstrike. The presenter on this tape is Ilaria Montagnani, who is a black belt in a martial art. It's supposed to be great for shoulders, chest and back (Illaria's upper body looks great). Has anyone ever tried this?