PPPoE sessions - Equal Distribution

Hello Experts,

I have been thinking about to change my topology to make a better use to my public address pool, with it, Im considering this topology in attach.

But once a time I read here that CCRs are not able to do this balancing, I would to need to ajust PADI time, right? I’m not fully remember that.
I’d like to suggestions. The request are coming from OLT, The CCR Interfaces are active with PPPoE Server, after receive the requests, they forwarding to Radius to authenticate them. Am I right? My thought, either not exist EQUAL Distribution or one CCR will get overload of sessions.

Thanks in advance.
topology.PNG