I have done a lot of shooting of both of the APA bows. The cams on the Black Mamba are the same cams as the bowtech black knight. The black Mamba has a 6.5 inch brace height, 35"ata, and an IBO speed of 340fps. It also has very little hand shock, especially for a bow with that kind of speed. The APA Taipan has a 7 5/8 " brace height 35"ata, and an IBO of 316 fps. It has virtually no hand shock and a very smooth draw. The cam on the Taipan is APA's own design. It also has 5 inches of draw length adjustment.