Leadbolt vs Dollarade

I have accounts with both the networks. Haven't used Leadbolt much, so can't tell much about it. But Dollarade used to convert pretty well for me in beginning. Now a days my EPC has dropped significantly using Dollarade. I still use the same traffic source and gateway design.

usually cpa companies will convert great at start and slowly go down.. so i guess we use the newest one.. all the time