While I'm sure someone else covered this already (gonna be reading the entirety when back from work ), DO NOT just blindly chop a ficus benjamina!!! They are NOT reliable back-budders, always chop in a way you're leaving a living branch or you can kill the specimen (usually chopping to the lowest shoot will induce lower back-budding that you can then cut-back to later), benjaminas aren't like microcarpas this way and are known to die off if trunk-chopped to the point of no foliage (my first-ever trunk-chop was actually the death of my loved topiary ficus.B!)My only advice would be if you’re going to chop it at all, be bold and chop hard the first time. You’ll get one good chance for vigorous budding and growth - don’t let that all happen up high and then have to cut it off again later.