Also, bear in mind that the idea is to get your snake off of feeding pinks as soon as possible; pinks are the least "nutritionally dense" food item (compared to other sized rodents, that is), and generally speaking, it stands to reason that the larger the prey item (adult mice vs. hoppers, hoppers vs. fuzzies, etc...), the better the nutrition, and not simply because of size (mass), but also because of the breadth of minerals and micronutrients in older, larger prey items.
regards,
jazz