That small berries are superior to big berries, and that high yield translates into low quality, are two prevalently held dogmas within the wine industry.  Data suggest that it is the journey rather than the destination that determines wine grape composition and wine sensory attributes.

We have found that the composition of the berry is more dependent on how it got to a size than on the size itself, and that what may matter more to fruit composition and wine sensory attributes than just yield per se, within a wide range of yields, are the conditions under which the fruit arrived at said yield. See the research summary figure below: