I would like to know the % of orphans other pools have, because I still have the feeling that this pool has a fairly high ratio.
I can tell you that all pools have problems since 0.8.1. Before that it was normal to have 1 to 2 %. Slush record is 3 orphans in a day... It is more of a bitcoind issues lately. I first thought WTF but when I got explanation I perfectly OK with it.