if that's what they tend to do anyway, what's to stop me from loading a new tray with some bedding/food and placing the 1st one on top of it (removing the sheet that is on the bottom of the 1st tray beforehand of course)?
again this brings up something i don't feel i understand fully. though the instructions called for loading the 1st tray with a full brick of coco coir (and newspaper), the instructions for the 2nd and onward only mention adding some compost from the 1st tray, some food and some bedding. it seems that they recommend adding quite a bit less in the way of bulk after the 1st tray. is that your understanding as well?