I have a sheet on my blade and am currently testing it. I have been using Gangster which I've been very impressed with as it seems to cause my opponent problems.
The pips on Desperado 2 feels a little harder than the softer ones of Gangster. I think Desperado is meant to be a touch slower but I'm not sure it feels it. That said I've only tried it on my robot so really need to try it in a real match.
That said, like Gangster, it seems to block the ball well, seems quite insensitive to spin. However it feels easier to lift and flick the ball with. So I think it has more potential.
I'll report back when I've played with it some more