General

AnimationTester applies repeated rotation tests so deformations can be checked joint by joint.
Animation Tester
Easily test deformations at every joint with the AnimationTester.
Easily test deformations at every joint with the AnimationTester.

Animation test controls
Use the AnimationTester window to apply a test animation, then choose the moving joint for paint weights by double-clicking.
Tip: Use the tester to expose deformation issues quickly before committing skin-weight fixes.