So I've had this for a while& am considering cutting off the top? Has anyone here done this before?

The person I used to know who grew these died a few years ago. Can anyone advise me on where to cut pls?

Especially now that the bottom has started to leaf out, I'd hope that cutting off the top growth would help concentrate the growth towards the bottom growth.

I'm thinking btwn the 2 groups of leaves, 1/2 way up the stem.

Ideas anyone?

Thanks