If anyone has an ETHEREUM [ETH] mining contract, splitting your hashrate 50/50 has been the most profitable for me. I was doing 100% DwarfPool for the longest time, but switched to 50% DwarfPool / 50% EthereumPool a few days ago and am earning ~14% more per MH/s now (a considerable difference). Ethereum stats posted below until minerlytics.com begins sharing data on different algorithms (if they even plan on doing so)..
2018 JAN 14: 0.00010007 ETH per 1 MH/s
2018 JAN 15: 0.00010264 ETH per 1 MH/s
2018 JAN 16: 0.00010238 ETH per 1 MH/s
2018 JAN 17: 0.00010024 ETH per 1 MH/s
Interesting!
I tried each one 100% and got better results in comparison with Dwarfpool (but this was just 2 days each early January) ... but If I compare it with my 100% DP the last days:
2018 JAN 14: 0.00009987 ETH per 1 MH/s
2018 JAN 15: 0.00010244 ETH per 1 MH/s
2018 JAN 16: 0.00010218 ETH per 1 MH/s
2018 JAN 17: 0.00010004 ETH per 1 MH/s
.... so yes, your observation of better results with 50/50 are valid. Just changed back to 50/50 too now.