Copying RGB values

Is there any way to copy exact RGB values on primary wheels from one node to another without copying full node? For example I got 10 interview shots with all masks already tracked and the client changes his mind regarding skintones, so I change skin grade in one clip and the client is happy with the sample. How can I copy those values to rest of the clips without loosing all tracking etc.?

Thanks

This is why you separate corrections into different nodes. You should also look at the new Shared Nodes feature if you're working in the 15 beta.