Baby monitors should be fed everyday. You also should have no control over how much they eat. Let them descide by supplying them with ample food. As far as the pinkies are concerned, yes and no. Savs are primarily incectivorious at that age, and mother nature knows what shes doing. However, i read a few posts back about pinkies, and FR, who breeds alot of monitors and is one of, if not the most knowledgable person here, said that he has raised numerous monitors on pinkies with no adverse affects. So, I would say that if your willing to buy several pinkies a day, or you are breading mice to supply that much, you will be just fine with feeding it just pinkies.
My two cents, take it for what its worth.
Truth