>>6666418In fact, those G1 Knees ARE for posing because they are not part of the transformation at all. But they are there. And G1 prime suck at posing like any G1s. I manage to pull off the "haters gonna hate" poste by miracle, with calculated balancing.
If still own a bunch of G1 originals, no need to hunt more though.
Also, I don't know if you already own Power Master Optimus Prime, but if you don't mind part-forming (and don't care about posing) you should get the God Ginrai set. This thing is AMAZING and push all the right buttons!
The reissue is still available:
http://www.bigbadtoystore.com/Product/VariationDetails/44302 