+1 on the bt020. I just changed tires to 020 rear / 010 front and I'm loving it so far. The bt020 slips a bit if you're hard out of the corner, but I had supercorsas before and my riding have become a bit agressive
Also, the supercorsas made riding in the rain a nightmare! These new tires don't mind the water at all. I ride normally and even when the asphalt is submerged in water, nothing dramatic happens, grip is always there. I fly past cagers slowing down and they look at me like I was nuts