Charging vs Blocking

[Chess Ref]

Now I have nowhere near the experience of most of the officials on this board but I actually listened to them. LOL I fall into the area of a little knowledge is a dangerous thing..... I now ref the defense most of the time. And lo and behold the amount of player control fouls and charges I have picked up is incredible. I can pick up the PC foul/charge with soooo much ease now. Really it's incredible by just reffing the defense what I pick up.....