Best inside fighter to learn from?

[Andre]

Ya have to watch close but 6:16 here you see Marco land a body shot and with the left arm left extended out on the way to stepping out, he just turns his body and checks Erics reply with his elbow. He gets up to a lot of that kind of stuff when its really on and tight. Reaction and experience mixed.Dont know if you can teach that.



He seems to only sometimes and its subtle but land a good shot but leaves his arm out floating for second and makes it get in the way of the counter reaction to his own shot by facing the reply.