Thank you for reading everything! I used to feed every week when he was actually eating since he didn't move up to appropriate sized rats but now that he's stopped completely I just offer whenever I go to feed my other snake which is every 10 days.
I've considered feeding live but I really hate having to do that. I'm going to try what you said with the f/t but if I'm not able to get him to eat after all of this I'm going to try live.