I actually feed smaller meals when they're coming off of a fast. If they were eating large/medium rats I'll give them mediums/smalls for a couple of feedings. Once I know their appetites are consistent and strong then I'll increase the prey size. My Bredli is really quirky. He normally eats medium rats. He won't touch rats right now but he'll slam jumbo mice. I'll let him have a couple of mice just to get him eating again then I'll start scenting the rats with a mouse. He'll refuse a couple of times and I won't feed him anything. After a few refusals he'll take a scented rat and in a couple of months he'll be eating unscented rats again. It sounds like your crew is heating up again. There's nothing wrong with giving them more food while they're taking it. I tend to feed my animals just a little bit more during the summer months. They eat more like every 2-4 weeks. My bullsnakes and Olive eat every 10-14 days.