I think you can offer her exactly the same size next time, without issue. They grow VERY fast at that age, and the nutrition she got from that fuzzy will give her the extra boost to take the next one even more easily.
It didn't look too large at all, to me. The snake is simply skinny, so the bulge is bigger than it would normally be.
The sagging skin under the jaw is normal after taking a correctly-sized meal, and she'll take a few hours to adjust her jaw and get it back into proper position.
I would definitely put her on a 5 day schedule, with fuzzies that size, and I think you'll see her growth rate accelerate very quickly.
I hatched several babies her size this year--I start them on mouse fuzzies, and then move them up to mouse hoppers, and then rat fuzzes. All of them are taking hoppers or fuzzy rats now. (The youngest hatched in late August).
Reply With Quote