please don't poke him with the feeder. if your male is anything like mine, he has to WANT to eat.
have you tried the heat it and leave it method since its last success? with Yellow, when he's in his heat-it-and-leave-it mood, i have to heat the head much longer than when anyone else just wants to strike.
with Yellow, i know within a minute of presenting a prey item how the feeding is going to go: heat-it-and-leave-it method: Yellow BARELY pokes his snoot out, he checks stuff out from within the hide, then retreats and waits for me to leave it; strike method: it's already gone lol.
i say keep trying to heat it and leave it. in my experience, male winter fasting starts october/november but of course that's just my own experience.
i trust your temps and judgement, so try to just leave the prey. you might waste a few feeders but he might catch on after a bit.
keep us posted!!!