Not best, but optimum Transmission?

I do not believe you are supposed to have a weighted torque converter and a weighted flex plate. Where did the t/c come from? Aftermarket ones might have a tiny weight on them, but that is just to balance the converter itself. They don't normally make the t/c weighted to match up to a specific external balance engine. Of course I did use the word "normally", and as we know, with Mopars that's rare.