For me, the hairdryer trick wouldn't work even with my corn snake. So I started thawing mine in warm water, then adding hot water to bump up the temperature just before feeding it. Pat it dry just a bit and tong feed. My corn instantly locked onto the hot 'temperature' signature coming from her mousey and would strike every time.
I have a picky BP hatchling that is getting fed tonight. We'll be using the same method. Nice, thoroughly warmed up rat fuzzy. Even if he doesn't strike, the heat signature should get him a bit more interested and identify it as food.
For some animals, you just aren't going to get the same 'strike' that you do other snakes. But that's okayAs long as they're eating like good little scalies.