From the ArcaMax Publishing, The Culinary World, with Chef James Newsletter:
http://www.arcamax.com/news/chefjames/s-326176-477822
According to pickle industry research, the average American prefers 7
'warts' per square inch, Europeans prefer pickles with no 'warts.' A
pickles crunch should be audible from 10 paces away.
Courtesy of FoodReference.com.