I'm certainly no expert and I've never had to deal with a non-feeding snake or force feed but I have one idea that may be worth a try.
I'm feeding my little corn small frozen pinkies from gourmet mice. I get them at petco. I notice that if I cut the pinky in half when it's frozen and thaw it out when I feed her that bloody half pinky she is a very aggressive feeder. It's like she's a little shark when she smells that blood.
The reason I started this is because she had a regurge and I wanted to give her smaller meals to get her past that.
Maybe try leaving your trouble one alone with no stress and good temps for a few days before trying to feed him a bloody chunk of pinky.
I'm not sure how that might differ from giving him a brained one except maybe a smaller portion and bloodier.
May be woth a try if nothing else does it.
I'm feeding my little corn small frozen pinkies from gourmet mice. I get them at petco. I notice that if I cut the pinky in half when it's frozen and thaw it out when I feed her that bloody half pinky she is a very aggressive feeder. It's like she's a little shark when she smells that blood.
The reason I started this is because she had a regurge and I wanted to give her smaller meals to get her past that.
Maybe try leaving your trouble one alone with no stress and good temps for a few days before trying to feed him a bloody chunk of pinky.
I'm not sure how that might differ from giving him a brained one except maybe a smaller portion and bloodier.
May be woth a try if nothing else does it.