70 Swinger over center clutch spring

Sorry for bringing this up again, but I'm thoroughly confused on the topic of the OC spring after reading some of the threads. I suspect this may be related to something that I'm experiencing. My 67 with a stroked small block/4-speed has a Ram Clutches Street Dual with the aluminum flywheel. Pedal has a great feel (not hard to press) and grabs excellent (even after 10+ years). But a few times over the years, when I'm shifting very aggressively (attempted quick shifts at high RPM), the pedal will stick to floor when I try to release. Happened again yesterday. Am I understanding correctly that this spring should be removed to address that? It seems counter intuitive.

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