Brain Game: Tooth be Told

I was experimenting with a Word Ladder recently - where one letter is changed per row, while the others stay in the same order that they were - to run from the word FLOSS to the word BRUSH. I was able to do it in six steps. Can you do better?

F L O S S
_ _ _ _ _
_ _ _ _ _
_ _ _ _ _
_ _ _ _ _
_ _ _ _ _
B R U S H

HERE is one answer.