Try feeding every 10 days. Feed what ever size matches his girth. For the first 4 or so feedings, offer what you know he will eat. Once he is established then try F/T. When it comes to offering prey, you will have to find whatever technique works for you snake. I keep mine in a tub and the way I have to do it is, after thawing and heating the rat, I open the lid just enought o get the tongs and rat in the tub. If he is already out of his hide looking for the rat I will zombie dance it until he strikes. If he is still in his hide or doesn't strike, then I will just lay the rat near his hide. Either way, mine will not eat if I am in the room so I feed him last, that way I can turn off the light and leave the room. Normally I will wait for about an hour before checking on him and usually the rat is gone. This may or may not work for you.

Personally I don't feed f/t pinks. I had a bad first experience with that. I wait until they are about rat pup size, about the time the eyes are open before I start working with f/t...