How isn't there? Don't enter guys if they can't make weight, simple as that. Weight is a MAJOR part of this game so doing CW makes zero sense to me. It's like playing an all-time fantasy 86 Bears vs 93 Cowboys in a strictly offensive game. It's not right to take out part of what made them a great team.
I don't want to clog up the thread though, that's all I'll say.
If we were to just do it at HW, it almost guarantees that a HW would win. It leaves no opportunity for anything below HW to be crowned the champion. While weight does mean alot in the game, this is a chance to crown a cross divisional champion under a new system, and CW is the only way to provide that.
Your concerns are valid, we're just going in a different direction with this thing than what has been done in the past.