Three seasons ago my son wrestled Top of 8U 110 and only weight a shade over One Hundred.
Week in and week out they would combine brackets. We always wrestled kids Ten to THIRTY pounds bigger then us. When the state series came around and all we had were kids our own weight class [But still ten pounds bigger] it was rather easy for us. He knew that always wresting bigger kids made him a lot stronger.
Now we are TOP of Ten Under and he only weighs 6 pounds more then he did back then. He has grown into a very different kid physically. But we still sign up every few weeks for an upper weight class to help us stay stronger.
So I guess what I'm trying to say is make the most of it. Use it as a tool not hand cuffs. Take pride that you wrestle bigger kids and hold your own. Cause I promise that three weeks of the year we are all on a level playing field and your son will be much better off for it.