i'am sure this has already been covered alot before, and i was gonna use this as a twim question, but cant wait any longer!
here goes..
if you are running the 4 verticals concept against zone, (bench switch for example in gun snugs) and your opponent is in a cover 3 zone defense and you hit them deep on one of the routes that open up,then they start switching to a cover 4,
is there any obvious give-aways or tells that they are in cover 4 and not cover 3 or another zone??
do the safties or CB's align any differently so you can tell its cover 4??
any help is much appreciated!