Here's that smoothing JCM... it applies when the bend parameter (X Rotate) is dialed on A3's feet. As the foot bends in degrees it smooths out the lower shin and upper foot, minimizing that bulging of the mesh that occurs there. There's a min limit of zero so the fixes only apply to positive bend values, it's subtle but noticeable... especially in certain lighting. The dials are hidden by default, unless you have show hidden parameters ticked. there's no need to touch the dials as the corrective morphs are slaved to the x rotations of the feet. I recommend not having IK on when first applying the INJ.

Bend Fix

Default bend 50°

Fix applied

That's enough with the feet for today.

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