Give my somce advise on how to switch my 1.1 balls over to f/t.

I tried the other day with no sucess. I brained it and left it in the cage a little after warming it up. I have had sucess on doing this with my boa's and western hognoses but amd new to the ball python world.

Oh, I have a blue eye lucy and a pastel calico. SWEET!!!!!!!!!!!!