32Ghashes wont be bringing in blocks often at all.
To. OP, try Eligius, they are great, Youd be about 10% of the pool,
Check your math? That'll average almost 3 blocks a week at current difficulty. If that's "not often," then you have a very unusual definition of "often."
I think his problem is that some weeks nothing will come in, other weeks, 6 blocks will come in.
The variance freaks some people out.
Plus with difficulty increases, variance actually costs you because you sometimes don't get anything before the next diff increase. Over a long period this doesn't matter, but in the short term, it can decrease your earnings.
Finally someone gets it..
What good is it if a slow pool's variance evens out in the next two months, if the current difficulty level only lasts 2 weeks or less?
You'll still be making less & less if you run into just a few unlucky streaks, because diff. is going up all the time.
With low variance pools that have massive hash rates, you are almost guaranteed to get 95-100% (or more if the pool is lucky) of your expected earnings.