Oscar fought Pac at 147.he had been fighting at 154,thats not a 40 pound weight loss.You forgot to mention that pac was fighting at 135 when Oscar called him out and Pac jumped 2 weight classes to fight Oscar. Margarito had been fighting at 147,had 1 fight at 154 prior to fighting Pac then fought Pac at 150 Cotto didnt drop 38 pounds.Pac fought Cotto at 145 ,Cotto weighed in at 146 in his previous fight Pac beat Marquez twice .The draw was BS.A reminder in case you forgot