Sorry for the confusion on these posts. Let me clarify.
What you are experiencing is inner race of the bearing tolerance. This can be addressed by gently tightening the set screw. This set screw was placed here by design for removing ball race slop. Be careful with this because over tightening will cause your inner swash to rotate very roughly.
The socket trick is only for tightening the spherical ball after crash impact or something similar. To tighten the spherical ball / clam shell assembly, simply use a socket which matches the diameter of the aluminum ring to press the ring back into place. The aluminum ring is locate on the bottom side of the inner swash.
Thanks,
Matt