OptionZero

Toe affects tire wear more than camber
Your toe is about double what factory specs are (.15)

The CORRECT way to do this, again:
SPL lockout kit to eliminate the eccentric bolt

SPL camber and toe arms (or midlinks)
The traction arm, from what i recall, is basically the third “leg” of a triangle formed by your rear suspension; in practice it affects toe change under driving dynamics. The toe arm sets static toe (when the car is stopped)

If you think of your rear suspension as a triangle you can see why adjustable length arms are needed to properly align your car

DISCLAIMER:
For OEM type (divorced) coilovers, you need SPL’s midlinks
For ”true” type, you get their toe arm

EDIT:
Further research also shows that your front toe is too high as well. Factory is .05-.11 deg total toe, you are again double that. I believe that will cause premature tire wear. Front toe is adjusted by tie rod length which is adjustable from the factory.

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