The best angle that I saw made it look like he was halfway down the line. I agree, a good angle would be helpful. In my view, if he had a modest lead and then froze he would have had a good chance at getting back. If he's a third of the way down the line (let alone half), in my opinion, that's too far. He risks getting doubled off in a situation like that. The mistake then becomes in the lead, not necessarily in whether he froze or not. Even on a contact play, he has to make sure the ball hits the ground. I look at it similarly to a pickoff attempt by the pitcher. He has to make sure that he can beat the 3B back to the bag. If the 3B could get to the bag that quickly in this situation, then Cave should have been able to as well.