-
Dear Clint,
You should prioritize the roots development in that stage. If you have just planted the young plants, and you still have to prune them you should simply let them grow. If you prune them the first time, and you created a spur (as it is described in vine pruner advanced course) you should select two shoots developed from the 2 buds you kept in the spur and take off the others. Keep them safe using a light tie. Keep only 2 shoot (or 1). Then you should wait for the next pruning. You can set up the trunk only if the plant has medium or strong vigour.