I went STRAIGHT to F/T with all 3 BPs I bought from him. I was gonna just wait it out until they took F/T but decided to have them eat once for me with live, then go the F/K and then F/T route. I actually bought two more adult females from the same breeder and they ate F/T in their 1st week with me......so outta 5 BPs I bought from him, 3 took F/T within days. The breeder says all of them have been great live eaters except for the occasional refusal during shed. I will put the rats down toinight and leave them overnight.