I always struggled with the corner shots because I have less of a spacial reference with the side of the backboard facing me. Shooting from the top of the key should be much easier, no? I always had the most success with the 45 degree angle one, right between the key and the corner. Maybe that’s just me though.
As someone who has shot a million and a half corner 3s in practice during college, the obvious answer is the distance.
The more hidden answer is the amount you practice an almost identical angle on that shot. You might practice a ton of top of the key shots, but you may never take an exact top of the key in game.
The corner 3 because you typically just sit there, is very identical to the one you practice alll day
This. Unless you mark the floor and shoot from the same spot on non-corner spots, you are guessing how far away you are and you might overcompensate which reduces your accuracy.
The corner 3 more or less looks the same no matter what court you play in.