Not to hijack this one but I have a question regarding pruning as well.
Most of my new vines (1 year old potted vines Just planted this year) have groth from two buds. I keep thinking I should trim one of them off in order to focus the growth the the strongest trunk, on the other hand I keep telling myself that I need to leave them alone so that I have a spare trunk incase something happens during the first year growing period.
Any thoughts?