CONGRATS! It's amazing how smart they are isn't it!?!
Are your boys in a shared cage or seperate? I just the other day placed a litter pan in the cage and did the steps mentioned on the magazine area about training...[is that where you learned to do this or elsewhere?]
We too are having terrific success. I wiped the shelves and the empty bottom tray down after cleaning up the droppings elsewhere in the cage. And found NO areas of pee elsewhere but the litter pan. But our other little chin isn't weaned yet. And I was curious as to if I need to leave the litter pan and see if he uses it. Or go back to the cage pan with bedding? And re-do the steps to get him litter trained...