I mix and match. All my snakes eat ASF's Mice and Rats. Frozen or thawed.
When the snakes are hatchlings i start them on ASF hoppers because they always eat them. After the snakes have eaten several meals i switch them to adult mice F/T. Some eat some dont. If they dont take to the mice right off they get another ASF. Eventualy they will take the F/T mouse. I dont do any prescenting.