http://www.youtube.com/watch?v=VGfY9fel-hA
I was test cutting with Deva Slayer and then a Miao Dao (the techniques of Deva Slayer was actually Miao Dao swordsmanship) on stiff, dry newspapers staves and normal, wet, thicker newspapers rolls.

http://www.youtube.com/watch?v=WAWKkVA-PUw
With Deva Slayer, I was trying to cut a thick roll (5") and only penetrated 90%. Then I cut a normal roll successfully.

http://www.youtube.com/watch?v=yN09cnT3FDg
My student Harry was cutting with the miao dao successfully against a normal roll.

http://www.youtube.com/watch?v=ypT7ApTWNVY
Another student was trying out a technique with miao dao on the normal roll with the first cut and the third cut being successful.

http://www.youtube.com/watch?v=hxpyQ8FKSxc

Testing out a miao dao I purchased for teaching use.