In ublock you will double your hashrate
I was mining on riepool, and now on ublock, and i don't know whats going on with their xptminer, but definitely the profits are much better in ublock.
2x Intel Xeon E5-2670 @2.97Ghz 16 total cores / 32 threads
reipool.ovh reporting
My Hashrate with diff. 4
My Hashrate
4,751.07 KH/s
I am running 2 instances of xptminer with 15 threads each assigned and affinity set specifically to each instance.