Yeah, my testing is on the latest release. I just did some major testing of my in-house distro that uses sharethis and it failed with every test I through at it. While sharethis js is loaded from a cdn and can load pretty good at times, it can also hang more often than not. Moving to service links has worked thus far. Believe me I would prefer to use sharethis for it different icons, post counts, more providers etc, but speed is more important for me.