Everybody who ask about what is better - small pool or big pool, here is little explanation.
Every pool or miner has "Luck" parameter, Luck = Net_hashrate / Pool_hashrate * Time_of_block. For example, let it be Suprnova pool with Pool_hashrate=2 MSol, Net_hashrate=3.5 MSol, Time_of_block=2.5 min, Luck = 3.5/2*2.5 = 4.375 min. So this pool will find little more than every 2nd block (as it has little more than 50% of net hashrate).
Okay, lets take 2 pools with those Lucks:
Pool1 with Luck1=0.003day (suprnova, 2 MSol of 3.5 MSol nethash, 4.3 min/block),
Pool2 with Luck2=0.3day (equihashpool.pro with 20 KSol).
For time when equihashpool find 1 block, suprnova will find 100 blocks. There is also a little probability that equihashpool won't find any block a whole day, (1-20/3500)^blocks_per_day = 0.9943^576 = 3.7%. If pool has Luck=1 day, it's few % that pool won't find any block even for a week (but same probability that it find 7 blocks in a day).
Thats why you have to stay on little pool for some days, because they are more chaotic and dependant on random.
If pool has found a block, it pays all miners value = Miner_own_shares / Pool_round_shares * 12500 BTCZ.
So all pools are equal in long term (in case they are fair, but most of them are).
By the way, come to
http://equihashpool.pro/ pool. No dev fee and 1% donation to BTCZ. Blocks are found not often because it need more hashrate, but payments are fair.