My son at 6u 40lbs. had an Ellsworth wrestler that stood a full head taller. My son barely came to his shoulders. He was rather skinny though. Kids come in all different sizes and shapes. In my own mind I've questioned some kids my older sons have wrestled. But, you see the kids later on at the same weight or up one weight. We attended a tournament last week. This wrestler looked more like an 8U 61lber not an 8U 55lber.