I am currently breaking in a pair of Ballistec 1.3s in my office before I decide to keep them. They are the black and highlighter yellow ones that Rafa wore back in the day. The price was right, so I bought them. I had a pair of 2.3s, but I went too small and they crushed my feet after 2 hours so I had to sell them. These are not as narrow (half size bigger), but they are a little long for me in the toe. It seems like I either have to buy painfully narrow or a little long in my shoes. I have been choosing length lately and lacing tight. No heel slippage though, so I think I'm good. Anyway, who still uses the 1.3s?