Encounters now get lots less "bitching" from Madison. Now that she is closer in size to Clooney he is a bit less bully-ish. I have noticed that they are hanging out in closer proximity without "fighting". They can both be downstairs in the kitchen in the mornings for Ferretone and treats.
I even witnessed Clooney go into the closet and seriously consider beating up on his sleeping sister but then just turn and walk away. This more peaceful co-existence is better but I am still holding out hope that these two will be friends, playmates, snugglers, etc.