How good is the Catsmasher's GnP?

Personally, I haven't seen enough of his fights to know for sure, but with his solid Wrestling background and training with Team Quest, I imagine it is at least above average.

It think Leben has a decent chance at beating Silva with a GnP strategy. I know Leben can take Silva down and control him, its just a question of him doing any damage and avoiding standups.

I think I am going to drop a little money on Leben just for fun....