Combat Routines in general are probably the safest you will EVER get using HB, as long as you are controlling the movement. No Bans for anyone that I know of using it. I"ve been using it everytime I play wow for the last year, no ban. you're fine.
Many ppl never saw any reports about PQR CR until banwave. I know it's not the same but there is always a chance to get banned. Even with only CR & manually movement.
Just my 2 cents