it's definitely something that comes with experience to know when or when not to allow advantage. i was doing the ecnl playoffs last july i think it was, and one of the great things about being allowed to referee those types of games is that you get to work with many very high level and very knowledgeable and proficient referees. i had a center in a girls 17 game, and on one line i had a national referee, and on the other a very experienced state referee and assessor. you always ask for feed back from these types of referees to learn and discuss the finer points of the games. one team had a great big center back that swept up just about everything, and would distribute to the mid field. one of the forwards for the other team took a shot at her pretty late after she dumped the ball in the defensive third to her outside back, and i waited and watched and allowed advantage. at half time, one of the critiques i got was that i shouldn't have allowed that advantage because there really wasn't any advantage to it. the ball is mired back in the defensive half of the field, go ahead and give the free kick. ok... so later in the game, halfway through the second half, same sort of thing happened, and for the third or fourth time the forward took a really late shot at the center back. so i immediately stopped play, gave a yellow for PI, and i could hear the the coach screaming at me. the center back had hit it long and picked out a winger flying down the touchline. i should have waited, watched, and given advantage there, then went back and carded the forward. after the game we talked about that too....... it's always a learning experience, and each play, no matter how similar it may look, can be very different.