I have argued this point for some time now. This would be the best of both worlds. They get that middle school team exposure and experience. Practice would be with their middle school team. If they do not have a conflicting middle school event on the weekend they could wrestle with the kids club.
I do not think that there are many of us club directors that want the kids to not do middle school wrestling but I have seen so many times with open weights at duals during the week that a kid gets 1 match that whole week. If they are looking for more actual mat time then they should be afforded that opportunity.
