Hi Mutty,
Plantsfor hanging baskets do usually have their leader pinched out to encourage extra branches.
The plants that I have kept I always 'dead head' which does make them much bushier, and of course keeps the flowering season going.
I think it's a question of being brave!! and if you have the time to wait, while the plant re-establishes itself.
It's a bit like keeping sweet peas, one always has to take out the leader to get extra flowering shoots!!
Hope this helps.
