I'm not sure if this is the right place but after reading through others pricing versus shopper groups issues and having several years with traditional POS systems it occurs to me there needs to be a more flexible solution to the pricing. Each shopper group should subscribe to a price class. This allows multiple groups to use a single price structure (such as anonymous and default). Many sites would only have only one price class this way. This also removes the need to set pricing and shopping groups with each item. By creating pricing classes this allows more flexibility than the current system.
Virtuemart Rule Nr 1.
DO NOT set defaults! You do not need to enter any shoppergroup for the products. You do not need to create prices for any shoppergroup.