A similar situation, with 11kh on the communitypool was 8k coins per day, after transfer to another pool was 14k with a small drop in difficulty on the network
i've just signed up just to say that community pool is ripping us miners off with the payout. its been happening to me too, ive tried 12khs each the community pool and cryptonight pool. and the payout is significantly different between the 2 pools theres about 4k difference between the 2. defo wouldnt go back to community pool