before you worry about feeding him again, you need to first identify the reason why he regurged. The main reason most regurge is temperature. Unless it's able to get at the ideal functioning temperature, a reptile's digestive system will not work. high end 85 low end 76, or somewhere in those ranges. 2nd of all if he's only 16 inches long, and depending on how big around he is, a fuzzy might be too large of a meal for him. If that was the case, then there's another reason he could have regurged.
Once you've firgured out why, hopefully within the next 10 days, then i'd try feeding it again. He/She should eat no problem. Feed it a pinkie for the next couple of feedings, making sure to watch for poop...ie signs of propper digestion. Then move up to 2 or a fuzzy. Honestly, if you're at the point where you're cutting fuzzies in half, then i dont think it needs to be on fuzzies yet. They're more nutritious but the risk of regurge outweighs the benefits. A pinkie should be just fine.
Oh yeah i forgot, try to leave it alone for those next 10 days. the seclusion will let it settle and reduce the amount of stress put on the snake(also another reason why it might regurge) That's about the best advice that i could give you but i'm not an expert by any stretch of the word.
ATTN Resident Breeders and those with more Experience: Please feel free to make corrections if there is any major mistakes in my post.
Good Luck mbrown and little flame. It should be fine but you can never tell. No worries.