I start all babies on live. I try rat pinks/fuzzies first unless the baby is a small one. Pinks/fuzzies that are 2-3 weeks old. Mouse hoppers usually work for the ones that refuse.
On occasion I've used ASF to start stubborn babies and they have always switched to mice or rats within a few weeks once they get the hang of feeding.
I use to switch to FT but started switching to PK instead to save time and money since I breed my own.
I assist feed no later than 4-5 weeks when all else fails. It usually only takes 2-3 assist feeds and the baby will then take mouse hoppers or rat pups on it's own.
This year I got lucky and all but 2 started on rats.
I feed babies every 4-5 days. I feed slightly smaller meals and get a faster growth rate. I have a plump 200 gram female that hatched in may.
I wholesale normals to my local reptile store, sell them for local pick up at the price of a normal, or to friends for next to nothing.