Is this normal?

The main reason im still on pinkies. The previous care taker said he was a very picky eater and the fuzzy he wouldnt go for. After this week i can say he is not being picky and i should be able to upgrade no problem. Hopefully the pet store near by has small enough ones.
The humidity usually sits at 63 but occasionally between 60-70
And the pinkies are currently same size of his head


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Just giving an idea:

I feed f/t rats and don't really care about getting f/t from a pet store because you don't know how long the mouse or rat has been in the store's freezer and where it has came from, or worrying if they have your food in stock. So I usually order my food online getting a few weeks of supply of whatever size my snake currently eats and a handful of a next bigger size up for when its ready to up the size on food. Grant it shipping is a little pricey, but I'd rather know where my feeders are coming from and approximately how fresh it is too (the company I order from euthanizes humanly either the day of or the day before shipment), besides they look better than what the pet store usually has.