The new parts are made from the new softer plastic but they don't seem to twist or anything.
The only parts that I needed to work on were the balls in the lower arms and the steeting blocks. Nothing out of the ordinary. I just squeezed the arm and ran a drill bit thru the blocks. No biggie and it only took a few minutes.
The pivot balls are a fine line between tight and loose. I'd rather have them tight and sand a little off than have them loose and sloppy. Rumor is they're going to make them a little better in the next batch.