It looked like that especially in the last 1 week.

As a newbie, I tried to analysis using the statistics from the site (https://mining.bitcoin.cz/stats/):

In this line and if the luck meant average against the world, the latest is  176% 89% 100% for 1 7 30 days.    Hence it seems it is just average (100%) if you calculate over 1 month.  But the 89% is very bad (and reflect the feel in the last 1 week).  But the 176% currently (because after a long wait we have 0 hour one), that seems just wide fluctuation of a small pool.  May be one has to be patient.

What I do not understand if one look at say this: http://bitcoinchain.com/pools

You can see that slush pool have average 258,349 GH/s but it only got 56 blocks but other having much less GH/s got more blocks.  Is that normal and are we getting less block than we should. 

It comes back, what does that meant the pool luck statistics reported in the site.  If it does not reflect the average block per time period per GH/s, what does it meant?

Just asking as I am still in this pool. 

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Another question whilst I am still in this pool, is my average average?

My 200 GH/s based on stat. should gave me 0.02 per day (per http://www.bitcoinx.com/profit/) but in this site it is average 0.0125 per day for the last 2 weeks (with last 10 rounds now is 200+ GH/s).  Is that a bit below expectation or it is the bitcoinx too optimistics about this.

In any case may be I should be happy as I saw all these TH/s machine coming everywhere now.  I think that 0.125 / day is not going to last even ...