Just to share more material for discussion. Today I sparred against a Chinese martial arts practitioner using a long, straight single edged sword made after his request. Me? Using my Brescia Spadona RSW version. His sword was 4 inches longer than mine, being 49 inches overall and 4 oz heavier, being 3 lbs 8 oz. Anyway here's the video.
http://www.rsw.com.hk/nodachi-vs-spadona.zip
The ground was wet, the weather was rainy, I didn't do any big moves I used to do a lot back then and switched to a new style of sparring (new for me). He used to practice with his senior with wooden swords (obviously large ones) and it was his first time here to spar with realistically weighted and balanced weapons in full contact mode. Very soon it showed how different it was from the semi-contact wooden swords combat he used to train with.

