With 100Gh this is probably as fine a place for you as any, you are unlikely to find a block, but if you do the reward would be huge. Think of mining here like a lottery...if you win, you win a lot, but your chance of winning is very small.
If you actually want a payout for mining, however small, I would suggest you look at CK's other pool:
https://bitcointalk.org/index.php?topic=1876330.0ckpool.org