You don't see the whole sword, it could also be a dagger.

He's calling it a sword, and the same principles apply if it was a dagger =/ Unless it's a pussy dagger.

It doesnt matter what it is, I called it a sword, but does it really seem weightless, because I was very happy when I watched for the first time, I was like, Oh I've managed to give it some weight and for me it really seems to have some weight :|

More comments on the weight & physics please.

It's fine to me. Arch~Angel should shut the hell up because he doesn't even know how tall the sword is.

The psychics tells me the sword looks like this: http://64.22.100.83/~banfield/DAGGER2.JPG

That couldn't be what it looks like because the blade is thin, like a sword.
The hand would still have to move differently to flip a dagger over ._.

Look closely in the bottom left corner when the flip begins, you'll see it's as tall as a dagger.

What I see is an incomplete drawing =/
If it was actually a finished drawing, then why didn't he finish it to make sure? lol