Every snake is different. Some will eat as soon as they go out of blue and haven't shed yet (usually shed within 2 days after color returns to their eyes) and others seem to wait until they fully shed before they want to eat. I would try feeding every week to 10 days. That's what I did and my ghi eventually took a small fuzzy mouse. After that I've fed her every 3-4 days and she hasn't skipped a meal since. They're such a docile species that they need to feel safe and secure before they will eat. Once they figure out you're not going to eat them they seem to relax a lot.