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The springs act in a reverse function of their original purpose, so, Yes, the springs are needed to help push the coupling apart. The use of a locking pin on the launch pad is required only if your spring set is a little too strong.
The springs act in a reverse function of their original purpose, so, Yes, the springs are needed to help push the coupling apart. The use of a locking pin on the launch pad is required only if your spring set is a little too strong.