I threw between 1,5 and 4MH/s to HashCows for 24h, maybe even longer.. Then i saw i only made 0,00097! Yes, a zero extra.. Was expecting at least 0.010 per MH/s, based on their stats.
Maybe an error on their part, but i decided to split 2MH/s to Clever and 2MH/s to Waffle for now..