I have one snake who eats live mice and all the others eat frozen thawed rats.

The snake who eats live mice has not been bitten and it is not stressful. I just simply put the mouse in the tub and close the tub. She eats the mouse. When she realigns her jaw, she gets another mouse. If she ever refuses the second mouse, I plop the mouse back into the mouse cage for the following week.

The snakes who eat f/t eat them off of hemostats and it's no big deal and each snake has a great feeding response.

I feed my boas f/t and have longer hemostats for them since- well- they're boas!!