I'm with ARKRWLR. I have 257k on my stock radiator and it's doing just fine. I am installing a B&M trans cooler tonight, but that's more for my new tires than trying to get away from milkshake.
Wonder if they got a huge batch of radiators that were messed up?
From all the threads I've seen on this milkshake issue, every persons radiator was doing just fine until the moment it failed. Yours could fail tomorrow and there is no way to easily predict it.