I know questions regarding the switch have been asked before, but seems most pertain to the actual prey item whereas I'm more concerned with size differences.

I have been feeding Alice the jumbo adult mice from Big Cheese, with an average size of 40 g. For about three months now, he's been eating two at a time with no problem. When I adopted Charger a few weeks ago, I fed him two as well. During a shed, he refused, so I gave Alice his two, which ended up totaling 160 g. He handled them fine, but looked like a huge sausage for a couple of days.

Well...the we finished the mice, so I decided to graduate to medium rats, ranging 90 to 150 g. When I picked them up (I live 20 min from Big Cheese..yah!) they seemed so large. Both Alice and Charger are big enough (850 and 750, respectively) to handle a 90 g rat based on their point of largest girth. But honestly, I absolutely cannot see them getting those big rats past their tiny heads and skinny necks. I know how a snake's jaws and throat work, but I need someone out there to tell me that it will be okay, they will get them down, and survive the experience

Feeding day is Monday....any words of wisdom?

Robbin