Pretty cool! I've rolled a few times and one time with one of the smaller pro's at my gym. It definitely is....disgusting haha. I remember the pro I was rolling with kept getting frustrated as he couldn't get any solid holds on me. He kept mentioning afterwards that if this was a match he wouldn't arm barred me early on. When he did grab my arms during our session, I would just pull them right out and surprisingly, my arm would easily come free because of the sweat.
Has striking ever interested you?