Something's not right. The drop in curves may be due to coin prices falling at exchange time. But for Neoscrypt the pool shows 0.36654 per MH/s for 24hrs **actual**, whereas my last 24hrs actual is 0.28.
Every yiimp based pool I have tried is like that. So much so that I wrote a vb app to log the totals every 5 minutes and calculate 24hr totals so I could make results-based decisions. Ignore the pool estimates.