I would say from around the upper section of the middle, Only because im guessing that it is not a mother plant but if it is You should take from the top (Newer Growth)
Top: Newer Hormones.
Middle: Ok Hormones.
Bottom: Old Hormones. (Not a Very good rate %)
They key is to have a high rate and make sure it goes smoothly,
Therefor take the top cuttings and Have healthy Clones..
Jayy's