I feed live because it means I can buy in bulk and I don't have to worry about buying another mouse every week. Plus, in my experience, live are more expensive, and sometimes harder to find. There's the added risk of injuries toward your snake with live, but if you'd feeding responsibly like you say you are, then there should no worries. I feed Calliope live ever now and again, and both work as long as you are doing it responsibly.
When I feed f/t, I just put hot water in a cup, stick the mouse (still in the package) in the cup, and I can work on chores/homework/anything else while the mouse is heating up, so it isn't too time consuming.
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