I've been doing some serious cutting back. Lots of pruning of the extra nubbins (some were practically branches) and one of the plants has bought it - it wasn't growing any fruit so I ripped it out. This means only x2 tomato plants remain, but both are bearing fruit.
Lessons for next year:
1) Always break off the extra leaf bits, otherwise there is chaos and you can't tell what plant is what.
2) Give them adequate structural support. They seem to like the board to grow up. I could fix a frame, and get them growing up that thing.
3) I think they had liked the shelter of the wooden board too.
4) Give them LOADs of water. I've been watering them loads but not all the water has been going in I think. The biggest, healthiest plant might have borne more fruit, but I'm still working on it.
5) The key is maintenance. They've grown quick in July. I haven't kept on top of them and they've grown all over each other.
