rmx series

In the RMx series reviews the OCP (+12V) has a "✗". But in Corsair's manual says: The RMx Series features OCP on the 3.3V, 5V and 12V rails. And even in the VS series reviews it has a "✓" so I'm confused.

Hi, I have a question regarding the RMx 750W and the SF750W PSUs. I need to choose one of the to put in the NZXT H200 case, but currently I'm leaning towards the SF one as it will leave more airflow for the GPU from below. Is there any difference between the two of them which would point...