You're also a PPLNS pool with a 0.9% fee as of writing, with luck on your side, you would win... But should you ever get a bad streak....

Quite a few of the miners on the pool are also rig renters who prefer paid per accepted share than having their earnings ninja'd out from under them by someone, with luck, directing large volume prior to a block being found.
You forgot to test against kano.is

Due to luck we've paid out 200% for anyone mining since the start (~1.5 months)
More than 200% for anyone who started just before the long 10 block run of under 100% at the moment

Transparent? See the entire source code for the pool on bitbucket

Do we hide where the extra BTC came from?
No.
It is simply luck so far and yes that will eventually change.
We don't say we are paying an extra X% out of magic - it's simply been pool luck so far.
P.S. I wrote the drive for the X3
