1. Cover tray with wax paper.
2. Place white chips and 1 tablespoon shortening in medium microwave-safe bowl. Microwave at MEDIUM (50%) 1 minute; stir until chips are melted and mixture is smooth. If necessary, microwave at MEDIUM an additional 30 seconds at a time, just until smooth when stirred.
3. Holding by top, dip 2/3 of each strawberry into white chip mixture; shake gently to remove excess. Place on prepared tray; refrigerate until coating is firm, at least 30 minutes.
4. Repeat microwave procedure with chocolate chips and remaining 1 tablespoon shortening in clean microwave-safe bowl. Dip lower 1/3 of each berry into chocolate mixture. Refrigerate until firm. Cover; refrigerate leftover strawberries. About 2 to 3 dozen berries.