I wish Lachy did more of the singing

I know they share the singing (Tsehay gets the most leads even though she is the weakest singer in my opinion. Her voice is flat)

Lachy has the voice of an angel. I love his versions, especially Love's Got The World Jumping, Wiggletown and Shimmie Shake. He sounds so beautiful, but under utilised! I can't listen to Dr Knickerbocker by Tsehay, it's like nails down a chalkboard.