I had the privilege of seeing a German import SchI Boxer & then working her son after a friend bought him as a young dog. The dog was absolutely super in 2 phases but as expected not a good tracker at all. He was a mid-sized dog, & when decoying him was kind of a cross between a Doberman & an Am.Staff. He had great endurance, willing to please and seemed well balanced in his drives. Being a 2-phase dog he never went far in obtaining titles ( the owner didn't care anyway) but once we had him trained up he did real well in protection tournaments, demos, & training young decoys.