98f is kind of high.

I'd try rats instead of mice, just to see if that entices more eating. Feed in the tubs, moving a snake stresses it at least some, so give it a try in the home tub.

Shy feeders sometimes need lots of time to approach the prey, in private. So you can put a FT in and leave them alone. A FT isn't going to hurt the snake, so no need to watch or to check often.

Don't prance a prey item right into a BPs face(unless that works for that particular snake). That can intimidate the snake. It's a delicate thing, doing a zombie rat dance exactly right for each snake.

Some might want smaller tubs, larger tubs, hides in the tubs, no hides, different substrate, different prey... they are individuals. Just takes time to figure out all the details.