Warrior General Games

My FB has basically no vision (12) and none in Spot Blitz, but does 'okay'.

He did miss a CB blitz that came in outside the OT (he was tucked in between the G and OT IIRC). Would Spot Blit help?

I'm not sure, but I tend to think not necessarily. From my experience, Spot Blitz picks up a blitzing LB or S more readily than a CB. I also helps you know when to go out into a route vs. stay in for protection.

Spot blitz would have helped if your vision was already decent. That's not to say that he 100% would have blocked the CB in your scenario, but would have had a better chance.