This is a tough topic for me even though I am also new to BP ownership. My little sister had a BP that was given away to a friend of hers after she passed away. I was upset with my parents as I would have loved to keep Charlotte for myself. Anyhow, my sister always fed Charlotte out of her tank because the person she got her from did the same and my sister was stubborn. My sister also only fed Charlotte hoppers every other month even she was large enough to take small to medium rats. Shortly before she was given away my dad measured her at 3.5ft. No idea on the weight as none of us knew weight was more significant than length lol.

I personally like feeding outside the tubs and so far it hasn't caused any feeding issues. They have not mistaken me for food. I take their feeding time as tub cleaning time.
Also, even with the majority of people favoring prekilled over live I also prefer live feeding. I watch my snake and make sure they eat it soon. If they show no interest in it within a short time I remove it right away.