Maybe I am doing my math incorrectly but why the hurry for S5?
S4 is 4 times the cost of Umisoo right now. The difference is 20% on the fees.
I am having trouble seeing why pay more for S4 or S5?
In the long run UMISOO is a better guy since its much cheaper with the fee difference not making up for it. HOWEVER, the way bitcoin price has been and difficulty coming up I think people are scared with UMISOO. On top of a lot of negative payouts assocaited with UMISOO although in the long run it will be positive (in theory 10% or so atm)