PCC load balancing Question

Hello to all
I have configured PCC load balancing as per wiki and its work 100% but the problem is
first wan 1 work 100% then wan 2 start work
i want wan 1 work 50% then wan 2 start work
like
tp-link ,d-link load balancer
load share wan1 50% wan2 50%
i hope anyone understand what i am trying to say.
sorry for bad english

The only way to tweak PCC is to change classifier. Try changing PCC classifier to both-addresses or both-addresses-and-ports. The last one will not work with sites that track session’s src IP.

can u explain more?