Settings to make configurable joints really fixed

Hello everybody!

Which settings should i enable in the configurable joints tab to make them as fixed as possible? Also any other settings/tips on making rigidbodies more stable/fixed together?

Thank you,
Nikita Makarov

For anybody wondering, the best solution is to parent all objects under one rigidbody and use a script that measures an impact to simulate the breaking of a joint. Then when an object is broken off the system adds a rigidbody to simulate physics on it.