They were feeding him 8 fuzzies how often?

Your snake sounds stressed to me. I think you need to check out the stickies on this forum about all the basics. It sounds like you are putting a lot into what PetSmart told you. Unfortunately, you need to forget most of it and start re-learning here on this forum. Their employees are just that, employees. They are not snake keepers, they are not properly trained and just piece together some of what you need to make sales. They are also feeding on a maintenance schedule, keeping their animals in horrible husbandry and this is all they know.

If you want to share the info I asked about in my last reply it would really be beneficial to you and your snake.