I feed both just in case one stops being available I have a back up, but now I am feeding live because I don't have enough money to order a good brand on the computer right now, and Petco only has Rodent Pro which always are bloody and packaged with their pee/poo, and I don't like that.

My snake is still young and only on mice, I will probably feed f/t when he gets to rats because he is a pretty lazy constrictor and I could see him getting hurt by a rat, but we will see.