Zeta Mate: reduce attempt, but 100% drop rate

I am not asking for more ways to get Zetas, just make it fair for everyone: I unlocked Zeta at the same time as someone, but he gets 80% drop rate and I get 10% effective. I don't care about long term as we will all be dead over the long term, I just say it is a uncouncsoius move to make a needed resources completely random.