Same here, gave the X11 pool a shot for 6 days and noticed every day that  I was nowhere near getting the stats as posted on the FP.
Switched back to waffle and got about the same amount bitcoins after only 2 days...

To be honest, if stats on FP are 3 times higher as what I'm seeing back in my wallets, either the stats are BS or there is something fishy going on.

Just my 2c ofcourse.