Chris...

-a titanium blade weighing 400g, 20cm in diameter with sharp edges on, spinning at 2000rpm
-a titanium blade weighing 40kg, 1 metre in diameter, and shaped into large hammers at the ends, spinning at 2000rpm

You and I know that these two things will do completely different amounts of damage when they hit...and yet you say material and rpm is all thats needed? I think theres a bit missing there :P

And btw, I could do with Cyclone Forces length really, but if you could make changes to the stats with regards to what Kody and Marti have (very excellently I must say, thanks guys ) mentioned above and add a length, we could be rolling.