When we planted at Higher Plot we chose a system called Double Guyot. Not because it had my name in the title but just because that's what French people did. Not exactly scientific but as good as anything to start with as it wouldn't stress the vines too much. What we have found is that the plants are happy here, maybe too happy and we can't have that. They give a good yield of grapes but they are also pretty vigorous growing lots of greenery and there's no market for leaves unless you are a Dolmades producer. What we need to do is to transfer that energy into extra grapes.
This year we're experimenting with double decker vines. This will mean more shoots but shorter ones. This has benefits in that less greenery means that there's better airflow which reduces the risk of disease and also potentially better quality as there's less shading and more light to ripen the grapes. Just to name drop, it was recommended to us by the illustrious Richard Smart no less. There are downsides. The bottom row is trained downwards to just about bunny height so they will be munching on the tips. The top deck is trained upwards and so we'll be looking for people with very long arms to harvest.
Will it work? Maybe, watch this space.