BPs are very well equipped to handle live prey, as long as it is appropriately sized. So if it is easier for you to feed live, that is perfectly ok. Just do so responsibly. Never leave live prey in with your snake unattended. The horror stories you hear about it are all due to owners who left a live rat or mouse in with their snake for an extended time.

If you wish to feed f/t, there are 2 things that I have found most useful. First, be sure to prescent. This just means allowing the snake to get the smell of the rodent for about 1/2 hour before you actually offer the food. This ensures the snake will be ready and eager to eat.

Second, just before offering the prey, give it a good shot with a hair dryer, focusing on the head. In a live mouse, the head is naturally the warmest part of the body, and so having the head warm helps the snake know where to strike. When I feed f/t, I try to get the entire mouse to about the same temp as a live mouse (which is warmer than human body temp), and the head a few degrees warmer than the head of a live mouse. For some reason the extra heat seems to help a reluctant snake decide to eat the prey.