Thanks for your prompt reply, Sensei! My favourite kind of advice - do nothing
Yes, I'd like the trunk thicker, so will do.
I've taken a close up as I'm uncertain of the branches you're referring to. In any case, why create a new apex from the lower branches rather than bending back one of the 3 strong apical shoots? Don't I then also lose the upward curve of the trunk I've been forming if I need to cut it back to form a new apex?
There might be an ignorance of botanical terms on my part here, my apologies - I had to look up 'apical shoot'.
Which leads me to my other question:
To form the shape I want, do I bend back one of the apical shoots (sketch A) or develop the branches/shoots along the trunk, B?