Tomato lost its head
So I went out to the greenhouse this morning to discover a dastardly slug (or something else?) had climbed up the neck of one of my tomatoes and chewed through, severing the head (and infuriatingly leaving everything else intact). It was only about 15cm tall, and is in the corner of the grow bag in a grow pot where it has been growing for two weeks. I have been removing side shoots as it grows, so the two leaves that remain have been previously plucked.
I have some back up tomatoes (aka I sowed too many) but they are half the size, if that, as I've not been nourishing them since I don't have the space. My question is, should I hoik the severed tomato out of the grow bag and replace it with a smaller tomato, with its growing point intact, or should I leave it in there, since it has a larger root system, which is plausibly already entwined with its other growbag chums, and hope that it will reshoot.
So which is, in your opinion, likely to get me most tomatoes? A plant with more roots, but no grow point, or a plant with less roots but with a grow point?