Different snakes prefer different ways of offering- I think if it works and he's eating, it's all good!
Depending on the BP, I've had to stick the nose into the hide and just wait for the jump scare. Some are totally fine with me lifting off the hide and poking the prey's nose right in their face or touching noses, and they'll strike. Sometimes the confident ones will come out of their hide right away if the tub gets opened and they smell food, and they'll nail it. Sometimes leaving the prey's nose at the hide entrance and just leaving them alone for an hour does the trick- when I check back, the prey is eaten.