 While it was a big improvement when tried by the British in Africa against early German tanks, the placement of a 37 mm gun turret on top gave it a very high profile, and the unusual side-sponson mounted main gun, with limited traverse, could not be aimed across the other side of the tank.Though reluctant to adopt British weapons into their arsenal, the American designers were prepared to accept proven British ideas.British ideas, as embodied in a tank designed by the Canadian General Staff, also influenced the development of the American Sherman tank.